# What is CVE-2020-3425? > CVE-2020-3425 is a high-severity flaw (CVSS 8.8) in IOS XE from Cisco, published on 24 September 2020. 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 1.8%. If you run an affected version, plan in the vendor’s fix. Canonical page: https://www.precursorintelligence.com/what-is/cve-2020-3425 ## 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:** 47 out of 100 (Medium); action: Plan remediation. Kept up to date as the evidence changes. - **Severity:** High (CVSS 8.8 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:** 1.8% (latest exploit-likelihood forecast) - **Published:** 24 September 2020 - **Record last updated:** 7 November 2023 - **Main product:** IOS XE from Cisco - **Affected products:** 110 ## What is CVE-2020-3425? In plain terms It can be attacked from anywhere on the internet 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 Multiple vulnerabilities in the web management framework of Cisco IOS XE Software could allow an authenticated, remote attacker with read-only privileges to elevate privileges to the level of an Administrator user on an affected device. For more information about these vulnerabilities, see the Details section of this advisory. ### What kind of flaw is it? - CWE-20: Improper Input Validation ### How an attack on it works - Where an attacker can be: Anywhere on the internet - 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:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H` ## Is CVE-2020-3425 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 1.8%. That can change at any time, which is why we keep watching. Exploit likelihood over the last 7 days: 1.8%, 1.8%, 1.8%, 1.8%, 1.8%, 1.8%, 1.8%. ### Timeline - 24 September 2020: Published - 7 November 2023: Record last updated ### How Precursor Intelligence ranks it CVE-2020-3425 scores **47 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-2020-3425? The published record lists 110 products. - [IOS XE](https://www.precursorintelligence.com/product/cisco/ios_xe) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Operating system): 16.1.1, 16.1.2, 16.1.3, 16.2.1, 16.2.2, 16.3.1a, 16.3.1, 16.3.2, 16.3.3, 16.3.4, 16.3.5b, 16.3.5, 16.3.6, 16.3.7, 16.3.8, 16.3.9, 16.3.10, 16.4.1, 16.4.2, 16.4.3, 16.5.1a, 16.5.1b, 16.5.1, 16.5.2, 16.5.3, 16.6.1, 16.6.2, 16.6.3, 16.6.4a, 16.6.4, 16.6.4s, 16.6.5a, 16.6.5b, 16.6.5, 16.6.6, 16.6.7a, 16.6.7, 16.6.8, 16.7.1a, 16.7.1b and 67 more - [1100 Integrated Services Router](https://www.precursorintelligence.com/product/cisco/1100_integrated_services_router) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [1101 Integrated Services Router](https://www.precursorintelligence.com/product/cisco/1101_integrated_services_router) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [1109 Integrated Services Router](https://www.precursorintelligence.com/product/cisco/1109_integrated_services_router) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [1111x Integrated Services Router](https://www.precursorintelligence.com/product/cisco/1111x_integrated_services_router) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [111x Integrated Services Router](https://www.precursorintelligence.com/product/cisco/111x_integrated_services_router) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [1120 Integrated Services Router](https://www.precursorintelligence.com/product/cisco/1120_integrated_services_router) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [1160 Integrated Services Router](https://www.precursorintelligence.com/product/cisco/1160_integrated_services_router) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [4221 Integrated Services Router](https://www.precursorintelligence.com/product/cisco/4221_integrated_services_router) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [4321 Integrated Services Router](https://www.precursorintelligence.com/product/cisco/4321_integrated_services_router) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [4331 Integrated Services Router](https://www.precursorintelligence.com/product/cisco/4331_integrated_services_router) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [4351 Integrated Services Router](https://www.precursorintelligence.com/product/cisco/4351_integrated_services_router) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [4431 Integrated Services Router](https://www.precursorintelligence.com/product/cisco/4431_integrated_services_router) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [4451-X Integrated Services Router](https://www.precursorintelligence.com/product/cisco/4451-x_integrated_services_router) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [4461 Integrated Services Router](https://www.precursorintelligence.com/product/cisco/4461_integrated_services_router) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [ASR 1001-Hx](https://www.precursorintelligence.com/product/cisco/asr_1001-hx) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [ASR 1001-X](https://www.precursorintelligence.com/product/cisco/asr_1001-x) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [ASR 1002-Hx](https://www.precursorintelligence.com/product/cisco/asr_1002-hx) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [ASR 1002-X](https://www.precursorintelligence.com/product/cisco/asr_1002-x) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [ASR 1004](https://www.precursorintelligence.com/product/cisco/asr_1004) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [ASR 1006](https://www.precursorintelligence.com/product/cisco/asr_1006) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [ASR 1006-X](https://www.precursorintelligence.com/product/cisco/asr_1006-x) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [ASR 1009-X](https://www.precursorintelligence.com/product/cisco/asr_1009-x) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [ASR 1013](https://www.precursorintelligence.com/product/cisco/asr_1013) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst 9800-40](https://www.precursorintelligence.com/product/cisco/catalyst_9800-40) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst 9800-80](https://www.precursorintelligence.com/product/cisco/catalyst_9800-80) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst 9800-Cl](https://www.precursorintelligence.com/product/cisco/catalyst_9800-cl) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst 9800-L](https://www.precursorintelligence.com/product/cisco/catalyst_9800-l) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst 9800-L-C](https://www.precursorintelligence.com/product/cisco/catalyst_9800-l-c) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst 9800-L-F](https://www.precursorintelligence.com/product/cisco/catalyst_9800-l-f) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9200-24p](https://www.precursorintelligence.com/product/cisco/catalyst_c9200-24p) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9200-24t](https://www.precursorintelligence.com/product/cisco/catalyst_c9200-24t) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9200-48p](https://www.precursorintelligence.com/product/cisco/catalyst_c9200-48p) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9200-48t](https://www.precursorintelligence.com/product/cisco/catalyst_c9200-48t) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9200l-24p-4g](https://www.precursorintelligence.com/product/cisco/catalyst_c9200l-24p-4g) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9200l-24p-4x](https://www.precursorintelligence.com/product/cisco/catalyst_c9200l-24p-4x) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9200l-24pxg-2y](https://www.precursorintelligence.com/product/cisco/catalyst_c9200l-24pxg-2y) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9200l-24pxg-4x](https://www.precursorintelligence.com/product/cisco/catalyst_c9200l-24pxg-4x) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9200l-24t-4g](https://www.precursorintelligence.com/product/cisco/catalyst_c9200l-24t-4g) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9200l-24t-4x](https://www.precursorintelligence.com/product/cisco/catalyst_c9200l-24t-4x) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9200l-48p-4g](https://www.precursorintelligence.com/product/cisco/catalyst_c9200l-48p-4g) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9200l-48p-4x](https://www.precursorintelligence.com/product/cisco/catalyst_c9200l-48p-4x) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9200l-48pxg-2y](https://www.precursorintelligence.com/product/cisco/catalyst_c9200l-48pxg-2y) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9200l-48pxg-4x](https://www.precursorintelligence.com/product/cisco/catalyst_c9200l-48pxg-4x) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9200l-48t-4g](https://www.precursorintelligence.com/product/cisco/catalyst_c9200l-48t-4g) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9200l-48t-4x](https://www.precursorintelligence.com/product/cisco/catalyst_c9200l-48t-4x) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9300-24p](https://www.precursorintelligence.com/product/cisco/catalyst_c9300-24p) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9300-24s](https://www.precursorintelligence.com/product/cisco/catalyst_c9300-24s) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9300-24t](https://www.precursorintelligence.com/product/cisco/catalyst_c9300-24t) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9300-24u](https://www.precursorintelligence.com/product/cisco/catalyst_c9300-24u) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9300-24ux](https://www.precursorintelligence.com/product/cisco/catalyst_c9300-24ux) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9300-48p](https://www.precursorintelligence.com/product/cisco/catalyst_c9300-48p) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9300-48s](https://www.precursorintelligence.com/product/cisco/catalyst_c9300-48s) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9300-48t](https://www.precursorintelligence.com/product/cisco/catalyst_c9300-48t) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9300-48u](https://www.precursorintelligence.com/product/cisco/catalyst_c9300-48u) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9300-48un](https://www.precursorintelligence.com/product/cisco/catalyst_c9300-48un) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9300-48uxm](https://www.precursorintelligence.com/product/cisco/catalyst_c9300-48uxm) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9300l-24p-4g](https://www.precursorintelligence.com/product/cisco/catalyst_c9300l-24p-4g) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9300l-24p-4x](https://www.precursorintelligence.com/product/cisco/catalyst_c9300l-24p-4x) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9300l-24t-4g](https://www.precursorintelligence.com/product/cisco/catalyst_c9300l-24t-4g) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9300l-24t-4x](https://www.precursorintelligence.com/product/cisco/catalyst_c9300l-24t-4x) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9300l-48p-4g](https://www.precursorintelligence.com/product/cisco/catalyst_c9300l-48p-4g) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9300l-48p-4x](https://www.precursorintelligence.com/product/cisco/catalyst_c9300l-48p-4x) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9300l-48t-4g](https://www.precursorintelligence.com/product/cisco/catalyst_c9300l-48t-4g) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9300l-48t-4x](https://www.precursorintelligence.com/product/cisco/catalyst_c9300l-48t-4x) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9500-12q](https://www.precursorintelligence.com/product/cisco/catalyst_c9500-12q) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9500-16x](https://www.precursorintelligence.com/product/cisco/catalyst_c9500-16x) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9500-24q](https://www.precursorintelligence.com/product/cisco/catalyst_c9500-24q) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9500-24y4c](https://www.precursorintelligence.com/product/cisco/catalyst_c9500-24y4c) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9500-32c](https://www.precursorintelligence.com/product/cisco/catalyst_c9500-32c) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9500-32qc](https://www.precursorintelligence.com/product/cisco/catalyst_c9500-32qc) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9500-40x](https://www.precursorintelligence.com/product/cisco/catalyst_c9500-40x) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Catalyst C9500-48y4c](https://www.precursorintelligence.com/product/cisco/catalyst_c9500-48y4c) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Cloud Services Router 1000v](https://www.precursorintelligence.com/product/cisco/cloud_services_router_1000v) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Integrated Services Virtual Router](https://www.precursorintelligence.com/product/cisco/integrated_services_virtual_router) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Ws-C3650-12x48uq](https://www.precursorintelligence.com/product/cisco/ws-c3650-12x48uq) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Ws-C3650-12x48ur](https://www.precursorintelligence.com/product/cisco/ws-c3650-12x48ur) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Ws-C3650-12x48uz](https://www.precursorintelligence.com/product/cisco/ws-c3650-12x48uz) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Ws-C3650-24pd](https://www.precursorintelligence.com/product/cisco/ws-c3650-24pd) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Ws-C3650-24pdm](https://www.precursorintelligence.com/product/cisco/ws-c3650-24pdm) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Ws-C3650-24ps](https://www.precursorintelligence.com/product/cisco/ws-c3650-24ps) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Ws-C3650-24td](https://www.precursorintelligence.com/product/cisco/ws-c3650-24td) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Ws-C3650-24ts](https://www.precursorintelligence.com/product/cisco/ws-c3650-24ts) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Ws-C3650-48fd](https://www.precursorintelligence.com/product/cisco/ws-c3650-48fd) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Ws-C3650-48fq](https://www.precursorintelligence.com/product/cisco/ws-c3650-48fq) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Ws-C3650-48fqm](https://www.precursorintelligence.com/product/cisco/ws-c3650-48fqm) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Ws-C3650-48fs](https://www.precursorintelligence.com/product/cisco/ws-c3650-48fs) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Ws-C3650-48pd](https://www.precursorintelligence.com/product/cisco/ws-c3650-48pd) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Ws-C3650-48pq](https://www.precursorintelligence.com/product/cisco/ws-c3650-48pq) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Ws-C3650-48ps](https://www.precursorintelligence.com/product/cisco/ws-c3650-48ps) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Ws-C3650-48td](https://www.precursorintelligence.com/product/cisco/ws-c3650-48td) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Ws-C3650-48tq](https://www.precursorintelligence.com/product/cisco/ws-c3650-48tq) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Ws-C3650-48ts](https://www.precursorintelligence.com/product/cisco/ws-c3650-48ts) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Ws-C3650-8x24uq](https://www.precursorintelligence.com/product/cisco/ws-c3650-8x24uq) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Ws-C3850](https://www.precursorintelligence.com/product/cisco/ws-c3850) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Ws-C3850-12s](https://www.precursorintelligence.com/product/cisco/ws-c3850-12s) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Ws-C3850-12x48u](https://www.precursorintelligence.com/product/cisco/ws-c3850-12x48u) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Ws-C3850-12xs](https://www.precursorintelligence.com/product/cisco/ws-c3850-12xs) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Ws-C3850-24p](https://www.precursorintelligence.com/product/cisco/ws-c3850-24p) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Ws-C3850-24s](https://www.precursorintelligence.com/product/cisco/ws-c3850-24s) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Ws-C3850-24t](https://www.precursorintelligence.com/product/cisco/ws-c3850-24t) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Ws-C3850-24u](https://www.precursorintelligence.com/product/cisco/ws-c3850-24u) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Ws-C3850-24xs](https://www.precursorintelligence.com/product/cisco/ws-c3850-24xs) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Ws-C3850-24xu](https://www.precursorintelligence.com/product/cisco/ws-c3850-24xu) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Ws-C3850-48f](https://www.precursorintelligence.com/product/cisco/ws-c3850-48f) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Ws-C3850-48p](https://www.precursorintelligence.com/product/cisco/ws-c3850-48p) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Ws-C3850-48t](https://www.precursorintelligence.com/product/cisco/ws-c3850-48t) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Ws-C3850-48u](https://www.precursorintelligence.com/product/cisco/ws-c3850-48u) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Ws-C3850-48xs](https://www.precursorintelligence.com/product/cisco/ws-c3850-48xs) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [Ws-C3860](https://www.precursorintelligence.com/product/cisco/ws-c3860) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified ## How do I fix CVE-2020-3425? 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 - [tools.cisco.com](https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-webui-priv-esc-K8zvEWM) (Vendor advisory) ## Questions ### What is CVE-2020-3425? CVE-2020-3425 is a high-severity flaw in IOS XE from Cisco, published on 24 September 2020. It can be attacked from anywhere on the internet 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-2020-3425? It scores 8.8 out of 10 on the CVSS severity scale, which is high. Our risk score for CVE-2020-3425 is 47 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-2020-3425 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 1.8%. That can change at any time, which is why we keep watching. ### Which versions does CVE-2020-3425 affect? For IOS XE from Cisco: 16.1.1, 16.1.2, 16.1.3, 16.2.1, 16.2.2, 16.3.1a and 101 more. The record lists 110 products in all, each with its versions, under "Who is affected" on this page. ### How do I fix CVE-2020-3425? 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-2020-3425 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