# What is CVE-2017-3756? > CVE-2017-3756 is a high-severity flaw (CVSS 7.8) in Thinkpad 10 Ella 2 BIOS from Lenovo, published on 18 August 2017. It is not on the list of flaws known to be exploited today. The latest forecast puts its chance of use in the next 30 days at 0.4%. If you run an affected version, plan in the vendor’s fix. Canonical page: https://www.precursorintelligence.com/what-is/cve-2017-3756 ## At a glance - **Verdict:** Plan it in. No sign of exploitation and a low forecast. Patch it in your normal update cycle. - **Precursor Intelligence risk score:** 46 out of 100 (Medium); action: Plan remediation. Kept up to date as the evidence changes. - **Severity:** High (CVSS 7.8 out of 10) - **Known to be exploited:** No, not on the list of flaws known to be exploited today - **Chance of use in the next 30 days:** 0.4% (latest exploit-likelihood forecast) - **Published:** 18 August 2017 - **Record last updated:** 20 April 2025 - **Main product:** Thinkpad 10 Ella 2 BIOS from Lenovo - **Affected products:** 151 ## What is CVE-2017-3756? In plain terms An attacker has to be already on the device with an ordinary user account, and nobody has to click anything. If it works, the attacker can read data, change data and take it offline. ### The official description A privilege escalation vulnerability was identified in Lenovo Active Protection System for ThinkPad systems versions earlier than 1.82.0.17. An attacker with local privileges could execute code with administrative privileges via an unquoted service path. ### What kind of flaw is it? - Unknown: Unknown ### How an attack on it works - Where an attacker can be: Already on the device - How hard it is to pull off: Easy: no special conditions - Login needed first: An ordinary user account - Does someone have to click: No, nobody has to do anything - What an attacker gets: Can read data, change data and take it offline Severity vector: `CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H` ## Is CVE-2017-3756 being exploited? Not that we know of It is not on the list of flaws known to be exploited today. The latest forecast puts the chance of it being used in the next 30 days at 0.4%. That can change at any time, which is why we keep watching. Exploit likelihood over the last 7 days: 0.4%, 0.4%, 0.4%, 0.4%, 0.4%, 0.4%, 0.4%. ### Timeline - 18 August 2017: Published - 20 April 2025: Record last updated ### How Precursor Intelligence ranks it CVE-2017-3756 scores **46 out of 100 (Medium)**, with the action "Plan remediation". Every published flaw gets a risk score from 0 to 100, kept up to date as the evidence changes. Four things go into the score, from the one that counts most to the ones that count less: - Evidence it is being exploited: biggest factor - How severe it is: strong factor - How widely exposed it is: smaller factor - Threat activity around it: smaller factor 85 and above is Critical. Anything confirmed as exploited is always marked for an emergency patch, whatever its score. When this flaw matches software you track, it lands in your list with its score and the reasons behind it. ## Who is affected by CVE-2017-3756? The published record lists 151 products. - [Thinkpad 10 Ella 2 BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_10_ella_2_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad 10 Ella 2](https://www.precursorintelligence.com/product/lenovo/thinkpad_10_ella_2) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad 11e Beema](https://www.precursorintelligence.com/product/lenovo/thinkpad_11e_beema) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad 11e Beema BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_11e_beema_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad 11e Braswell](https://www.precursorintelligence.com/product/lenovo/thinkpad_11e_braswell) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad 11e Braswell BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_11e_braswell_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad 11e Broadwell](https://www.precursorintelligence.com/product/lenovo/thinkpad_11e_broadwell) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad 11e Broadwell BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_11e_broadwell_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad 11e Skylake](https://www.precursorintelligence.com/product/lenovo/thinkpad_11e_skylake) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad 11e Skylake BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_11e_skylake_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad 13e](https://www.precursorintelligence.com/product/lenovo/thinkpad_13e) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad 13e BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_13e_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad E450](https://www.precursorintelligence.com/product/lenovo/thinkpad_e450) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad E450 BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_e450_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad E450c](https://www.precursorintelligence.com/product/lenovo/thinkpad_e450c) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad E450c BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_e450c_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad E455](https://www.precursorintelligence.com/product/lenovo/thinkpad_e455) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad E455 BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_e455_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad E460](https://www.precursorintelligence.com/product/lenovo/thinkpad_e460) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad E460 BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_e460_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad E465](https://www.precursorintelligence.com/product/lenovo/thinkpad_e465) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad E465 BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_e465_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad E550](https://www.precursorintelligence.com/product/lenovo/thinkpad_e550) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad E550 BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_e550_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad E550c](https://www.precursorintelligence.com/product/lenovo/thinkpad_e550c) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad E550c BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_e550c_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad E555](https://www.precursorintelligence.com/product/lenovo/thinkpad_e555) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad E555 BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_e555_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad E560](https://www.precursorintelligence.com/product/lenovo/thinkpad_e560) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad E560 BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_e560_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad E565](https://www.precursorintelligence.com/product/lenovo/thinkpad_e565) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad E565 BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_e565_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad Edge E440](https://www.precursorintelligence.com/product/lenovo/thinkpad_edge_e440) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad Edge E440 BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_edge_e440_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad Edge E445](https://www.precursorintelligence.com/product/lenovo/thinkpad_edge_e445) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad Edge E445 BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_edge_e445_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad Edge E540](https://www.precursorintelligence.com/product/lenovo/thinkpad_edge_e540) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad Edge E540 BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_edge_e540_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad Edge E545](https://www.precursorintelligence.com/product/lenovo/thinkpad_edge_e545) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad Edge E545 BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_edge_e545_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad Helix 20cg](https://www.precursorintelligence.com/product/lenovo/thinkpad_helix_20cg) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad Helix 20cg BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_helix_20cg_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad Helix 20ch](https://www.precursorintelligence.com/product/lenovo/thinkpad_helix_20ch) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad Helix 20ch BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_helix_20ch_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad L440](https://www.precursorintelligence.com/product/lenovo/thinkpad_l440) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad L440 BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_l440_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad L450](https://www.precursorintelligence.com/product/lenovo/thinkpad_l450) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad L450 BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_l450_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad L460](https://www.precursorintelligence.com/product/lenovo/thinkpad_l460) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad L460 BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_l460_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad L540](https://www.precursorintelligence.com/product/lenovo/thinkpad_l540) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad L540 BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_l540_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad L560](https://www.precursorintelligence.com/product/lenovo/thinkpad_l560) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad L560 BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_l560_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad P50](https://www.precursorintelligence.com/product/lenovo/thinkpad_p50) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad P50 BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_p50_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad P50s](https://www.precursorintelligence.com/product/lenovo/thinkpad_p50s) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad P50s BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_p50s_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad P70](https://www.precursorintelligence.com/product/lenovo/thinkpad_p70) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad P70 BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_p70_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad S1 Yoga 12](https://www.precursorintelligence.com/product/lenovo/thinkpad_s1_yoga_12) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad S1 Yoga 12 BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_s1_yoga_12_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad S1 Yoga Non Vpro](https://www.precursorintelligence.com/product/lenovo/thinkpad_s1_yoga_non_vpro) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad S1 Yoga Non Vpro BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_s1_yoga_non_vpro_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad S1 Yoga Vpro](https://www.precursorintelligence.com/product/lenovo/thinkpad_s1_yoga_vpro) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad S1 Yoga Vpro BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_s1_yoga_vpro_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad S3 S440](https://www.precursorintelligence.com/product/lenovo/thinkpad_s3_s440) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad S3 S440 BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_s3_s440_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad S3 Yoga 14](https://www.precursorintelligence.com/product/lenovo/thinkpad_s3_yoga_14) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad S3 Yoga 14 BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_s3_yoga_14_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad S5 E560p](https://www.precursorintelligence.com/product/lenovo/thinkpad_s5_e560p) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad S5 E560p BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_s5_e560p_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad S5 Yoga 15](https://www.precursorintelligence.com/product/lenovo/thinkpad_s5_yoga_15) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad S5 Yoga 15 BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_s5_yoga_15_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad S540](https://www.precursorintelligence.com/product/lenovo/thinkpad_s540) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad S540 BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_s540_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad T440](https://www.precursorintelligence.com/product/lenovo/thinkpad_t440) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad T440 BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_t440_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad T440p](https://www.precursorintelligence.com/product/lenovo/thinkpad_t440p) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad T440p BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_t440p_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad T440s](https://www.precursorintelligence.com/product/lenovo/thinkpad_t440s) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad T440s BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_t440s_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad T440u](https://www.precursorintelligence.com/product/lenovo/thinkpad_t440u) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad T440u BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_t440u_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad T450](https://www.precursorintelligence.com/product/lenovo/thinkpad_t450) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad T450 BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_t450_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad T450s](https://www.precursorintelligence.com/product/lenovo/thinkpad_t450s) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad T450s BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_t450s_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad T460](https://www.precursorintelligence.com/product/lenovo/thinkpad_t460) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad T460 BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_t460_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad T460p](https://www.precursorintelligence.com/product/lenovo/thinkpad_t460p) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad T460p BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_t460p_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad T460s](https://www.precursorintelligence.com/product/lenovo/thinkpad_t460s) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad T460s BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_t460s_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad T540](https://www.precursorintelligence.com/product/lenovo/thinkpad_t540) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad T540 BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_t540_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad T540p](https://www.precursorintelligence.com/product/lenovo/thinkpad_t540p) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad T540p BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_t540p_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad T550](https://www.precursorintelligence.com/product/lenovo/thinkpad_t550) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad T550 BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_t550_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad T560](https://www.precursorintelligence.com/product/lenovo/thinkpad_t560) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad T560 BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_t560_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad Tablet 10](https://www.precursorintelligence.com/product/lenovo/thinkpad_tablet_10) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad Tablet 10 BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_tablet_10_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad Tablet 8](https://www.precursorintelligence.com/product/lenovo/thinkpad_tablet_8) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad Tablet 8 BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_tablet_8_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad W540](https://www.precursorintelligence.com/product/lenovo/thinkpad_w540) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad W540 BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_w540_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad W541](https://www.precursorintelligence.com/product/lenovo/thinkpad_w541) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad W541 BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_w541_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad W550s](https://www.precursorintelligence.com/product/lenovo/thinkpad_w550s) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad W550s BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_w550s_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad X1 Carbon](https://www.precursorintelligence.com/product/lenovo/thinkpad_x1_carbon) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad X1 Carbon 20ax](https://www.precursorintelligence.com/product/lenovo/thinkpad_x1_carbon_20ax) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad X1 Carbon 20ax BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_x1_carbon_20ax_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad X1 Carbon 20bx](https://www.precursorintelligence.com/product/lenovo/thinkpad_x1_carbon_20bx) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad X1 Carbon 20bx BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_x1_carbon_20bx_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad X1 Carbon BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_x1_carbon_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad X1 Tablet](https://www.precursorintelligence.com/product/lenovo/thinkpad_x1_tablet) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad X1 Tablet BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_x1_tablet_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad X1 Yoga](https://www.precursorintelligence.com/product/lenovo/thinkpad_x1_yoga) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad X1 Yoga BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_x1_yoga_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad X140e Amd](https://www.precursorintelligence.com/product/lenovo/thinkpad_x140e_amd) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad X140e Amd BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_x140e_amd_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad X240](https://www.precursorintelligence.com/product/lenovo/thinkpad_x240) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad X240 BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_x240_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad X240s](https://www.precursorintelligence.com/product/lenovo/thinkpad_x240s) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad X240s BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_x240s_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad X250 Broadwell](https://www.precursorintelligence.com/product/lenovo/thinkpad_x250_broadwell) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad X250 Broadwell BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_x250_broadwell_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad X250 Sharkbay](https://www.precursorintelligence.com/product/lenovo/thinkpad_x250_sharkbay) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad X250 Sharkbay BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_x250_sharkbay_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad X260](https://www.precursorintelligence.com/product/lenovo/thinkpad_x260) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad X260 BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_x260_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad Yoga 11e](https://www.precursorintelligence.com/product/lenovo/thinkpad_yoga_11e) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad Yoga 11e Beema](https://www.precursorintelligence.com/product/lenovo/thinkpad_yoga_11e_beema) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad Yoga 11e Beema BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_yoga_11e_beema_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad Yoga 11e BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_yoga_11e_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad Yoga 11e Braswell](https://www.precursorintelligence.com/product/lenovo/thinkpad_yoga_11e_braswell) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad Yoga 11e Braswell BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_yoga_11e_braswell_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad Yoga 11e Broadwell](https://www.precursorintelligence.com/product/lenovo/thinkpad_yoga_11e_broadwell) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad Yoga 11e Broadwell BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_yoga_11e_broadwell_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad Yoga 11e Skylake](https://www.precursorintelligence.com/product/lenovo/thinkpad_yoga_11e_skylake) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad Yoga 11e Skylake BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_yoga_11e_skylake_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad Yoga 14 460 S3](https://www.precursorintelligence.com/product/lenovo/thinkpad_yoga_14_460_s3) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad Yoga 14 460 S3 BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_yoga_14_460_s3_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Thinkpad Yoga 260 S1](https://www.precursorintelligence.com/product/lenovo/thinkpad_yoga_260_s1) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Hardware): version not specified - [Thinkpad Yoga 260 S1 BIOS](https://www.precursorintelligence.com/product/lenovo/thinkpad_yoga_260_s1_bios) by [Lenovo](https://www.precursorintelligence.com/vendors/lenovo) (Operating system): version not specified - [Windows 10](https://www.precursorintelligence.com/product/microsoft/windows_10) by [Microsoft](https://www.precursorintelligence.com/vendors/microsoft) (Operating system): all versions - [Windows 7](https://www.precursorintelligence.com/product/microsoft/windows_7) by [Microsoft](https://www.precursorintelligence.com/vendors/microsoft) (Operating system): all versions - [Windows 8.1](https://www.precursorintelligence.com/product/microsoft/windows_8.1) by [Microsoft](https://www.precursorintelligence.com/vendors/microsoft) (Operating system): all versions ## How do I fix CVE-2017-3756? 1. **Check whether you run it.** Compare your versions with the affected products above. Not sure what you run? Precursor Intelligence can work it out from your public website, or you can pick it from a list. 2. **Apply the vendor’s fix.** Install the update named in the vendor’s advisory. We’ve put the advisory first in the list. 3. **If you can’t patch today.** Follow any mitigation the vendor publishes, and limit who can reach the affected system from the internet until the update is in. 4. **Keep an eye on it.** Track the product and we tell you as soon as we spot this flaw on the list of exploited flaws, or a jump in its exploit likelihood. ### References - [support.lenovo.com](https://support.lenovo.com/us/en/product_security/LEN-15765) (Vendor advisory) - [securityfocus.com](http://www.securityfocus.com/bid/100305) (Third-party advisory, Vulnerability database) ## Questions ### What is CVE-2017-3756? CVE-2017-3756 is a high-severity flaw in Thinkpad 10 Ella 2 BIOS from Lenovo, published on 18 August 2017. An attacker has to be already on the device with an ordinary user account, and nobody has to click anything. If it works, the attacker can read data, change data and take it offline. ### How serious is CVE-2017-3756? It scores 7.8 out of 10 on the CVSS severity scale, which is high. Our risk score for CVE-2017-3756 is 46 out of 100, which is Medium. Its action is "Plan remediation". No sign of exploitation and a low forecast. Patch it in your normal update cycle. ### Is CVE-2017-3756 being exploited? It is not on the list of flaws known to be exploited today. The latest forecast puts the chance of it being used in the next 30 days at 0.4%. That can change at any time, which is why we keep watching. ### Which versions does CVE-2017-3756 affect? For Thinkpad 10 Ella 2 BIOS from Lenovo: version not specified. The record lists 151 products in all, each with its versions, under "Who is affected" on this page. ### How do I fix CVE-2017-3756? Install the update the vendor names in its advisory, linked first under "How do I fix" on this page. If you can't patch today, follow the vendor's mitigation and limit who can reach the affected system from the internet. ## Does CVE-2017-3756 affect you? Precursor Intelligence keeps checking for you: - **Tell us what you run.** Pick your software from a list, or let us work it out from your website. - **We match it to every flaw.** Over 400,000 published flaws, checked against your list. - **Ranked by real-world risk.** Every flaw gets a 0 to 100 risk score, kept up to date, led by evidence criminals are using it. - **Told as soon as we know.** An alert by email, in the app or by webhook to your own tools. Start free (no card, nothing to install): https://www.precursorintelligence.com/register Book a demo: https://www.precursorintelligence.com/contact