# What is CVE-2019-11983? > CVE-2019-11983 is a high-severity flaw (CVSS 7.0) in Integrated Lights-Out 5 Firmware from HP, published on 5 June 2019. 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 1.1%. If you run an affected version, plan in the vendor’s fix. Canonical page: https://www.precursorintelligence.com/what-is/cve-2019-11983 ## 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 7.0 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:** 1.1% (latest exploit-likelihood forecast) - **Published:** 5 June 2019 - **Record last updated:** 7 June 2019 - **Main product:** Integrated Lights-Out 5 Firmware from HP - **Affected products:** 39 ## What is CVE-2019-11983? In plain terms It can be attacked from anywhere on the internet without logging in, and nobody has to click anything. If it works, the attacker can take it offline. ### The official description A remote buffer overflow vulnerability was identified in HPE Integrated Lights-Out 4 (iLO 4) earlier than v2.61b for Gen9 servers and Integrated Lights-Out 5 (iLO 5) for Gen10 Servers earlier than version v1.39. ### What kind of flaw is it? - CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer ### How an attack on it works - Where an attacker can be: Anywhere on the internet - How hard it is to pull off: Hard: conditions must line up - Login needed first: No login needed - Does someone have to click: No, nobody has to do anything - What an attacker gets: Can take it offline Severity vector: `CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H` ## Is CVE-2019-11983 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 1.1%. That can change at any time, which is why we keep watching. Exploit likelihood over the last 7 days: 1.1%, 1.1%, 1.1%, 1.1%, 1.1%, 1.1%, 1.1%. ### Timeline - 5 June 2019: Published - 7 June 2019: Record last updated ### How Precursor Intelligence ranks it CVE-2019-11983 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-2019-11983? The published record lists 39 products. - [Integrated Lights-Out 5 Firmware](https://www.precursorintelligence.com/product/hp/integrated_lights-out_5_firmware) by [HP](https://www.precursorintelligence.com/vendors/hp) (Operating system): up to 1.39 - [Integrated Lights-Out 4 Firmware](https://www.precursorintelligence.com/product/hp/integrated_lights-out_4_firmware) by [HP](https://www.precursorintelligence.com/vendors/hp) (Operating system): up to 2.61b - [Proliant Bl460c Gen10](https://www.precursorintelligence.com/product/hp/proliant_bl460c_gen10) by [HP](https://www.precursorintelligence.com/vendors/hp) (Hardware): version not specified - [Proliant Bl460c Gen9](https://www.precursorintelligence.com/product/hp/proliant_bl460c_gen9) by [HP](https://www.precursorintelligence.com/vendors/hp) (Hardware): version not specified - [Proliant Dl120 Gen10](https://www.precursorintelligence.com/product/hp/proliant_dl120_gen10) by [HP](https://www.precursorintelligence.com/vendors/hp) (Hardware): version not specified - [Proliant Dl120 Gen9](https://www.precursorintelligence.com/product/hp/proliant_dl120_gen9) by [HP](https://www.precursorintelligence.com/vendors/hp) (Hardware): version not specified - [Proliant Dl160 Gen10](https://www.precursorintelligence.com/product/hp/proliant_dl160_gen10) by [HP](https://www.precursorintelligence.com/vendors/hp) (Hardware): version not specified - [Proliant Dl180 Gen10](https://www.precursorintelligence.com/product/hp/proliant_dl180_gen10) by [HP](https://www.precursorintelligence.com/vendors/hp) (Hardware): version not specified - [Proliant Dl180 Gen9](https://www.precursorintelligence.com/product/hp/proliant_dl180_gen9) by [HP](https://www.precursorintelligence.com/vendors/hp) (Hardware): version not specified - [Proliant Dl20 Gen10](https://www.precursorintelligence.com/product/hp/proliant_dl20_gen10) by [HP](https://www.precursorintelligence.com/vendors/hp) (Hardware): version not specified - [Proliant Dl325 Gen10](https://www.precursorintelligence.com/product/hp/proliant_dl325_gen10) by [HP](https://www.precursorintelligence.com/vendors/hp) (Hardware): version not specified - [Proliant Dl360 Gen10](https://www.precursorintelligence.com/product/hp/proliant_dl360_gen10) by [HP](https://www.precursorintelligence.com/vendors/hp) (Hardware): version not specified - [Proliant Dl360 Gen9](https://www.precursorintelligence.com/product/hp/proliant_dl360_gen9) by [HP](https://www.precursorintelligence.com/vendors/hp) (Hardware): version not specified - [Proliant Dl380 Gen10](https://www.precursorintelligence.com/product/hp/proliant_dl380_gen10) by [HP](https://www.precursorintelligence.com/vendors/hp) (Hardware): version not specified - [Proliant Dl380 Gen9](https://www.precursorintelligence.com/product/hp/proliant_dl380_gen9) by [HP](https://www.precursorintelligence.com/vendors/hp) (Hardware): version not specified - [Proliant Dl385 Gen10](https://www.precursorintelligence.com/product/hp/proliant_dl385_gen10) by [HP](https://www.precursorintelligence.com/vendors/hp) (Hardware): version not specified - [Proliant Dl560 Gen10](https://www.precursorintelligence.com/product/hp/proliant_dl560_gen10) by [HP](https://www.precursorintelligence.com/vendors/hp) (Hardware): version not specified - [Proliant Dl580 Gen10](https://www.precursorintelligence.com/product/hp/proliant_dl580_gen10) by [HP](https://www.precursorintelligence.com/vendors/hp) (Hardware): version not specified - [Proliant Dl580 Gen9](https://www.precursorintelligence.com/product/hp/proliant_dl580_gen9) by [HP](https://www.precursorintelligence.com/vendors/hp) (Hardware): version not specified - [Proliant Microserver Gen10](https://www.precursorintelligence.com/product/hp/proliant_microserver_gen10) by [HP](https://www.precursorintelligence.com/vendors/hp) (Hardware): version not specified - [Proliant Ml10 Gen9](https://www.precursorintelligence.com/product/hp/proliant_ml10_gen9) by [HP](https://www.precursorintelligence.com/vendors/hp) (Hardware): 2 - [Proliant Ml110 Gen10](https://www.precursorintelligence.com/product/hp/proliant_ml110_gen10) by [HP](https://www.precursorintelligence.com/vendors/hp) (Hardware): version not specified - [Proliant Ml110 Gen9](https://www.precursorintelligence.com/product/hp/proliant_ml110_gen9) by [HP](https://www.precursorintelligence.com/vendors/hp) (Hardware): version not specified - [Proliant Ml150 Gen9](https://www.precursorintelligence.com/product/hp/proliant_ml150_gen9) by [HP](https://www.precursorintelligence.com/vendors/hp) (Hardware): version not specified - [Proliant Ml30 Gen9](https://www.precursorintelligence.com/product/hp/proliant_ml30_gen9) by [HP](https://www.precursorintelligence.com/vendors/hp) (Hardware): 2 - [Proliant Ml350 Gen10](https://www.precursorintelligence.com/product/hp/proliant_ml350_gen10) by [HP](https://www.precursorintelligence.com/vendors/hp) (Hardware): version not specified - [Proliant Ml350 Gen9](https://www.precursorintelligence.com/product/hp/proliant_ml350_gen9) by [HP](https://www.precursorintelligence.com/vendors/hp) (Hardware): version not specified - [Proliant Ws460c Gen9](https://www.precursorintelligence.com/product/hp/proliant_ws460c_gen9) by [HP](https://www.precursorintelligence.com/vendors/hp) (Hardware): version not specified - [Proliant Xl170r Gen10](https://www.precursorintelligence.com/product/hp/proliant_xl170r_gen10) by [HP](https://www.precursorintelligence.com/vendors/hp) (Hardware): version not specified - [Proliant Xl170r Gen9](https://www.precursorintelligence.com/product/hp/proliant_xl170r_gen9) by [HP](https://www.precursorintelligence.com/vendors/hp) (Hardware): version not specified - [Proliant Xl190r Gen10](https://www.precursorintelligence.com/product/hp/proliant_xl190r_gen10) by [HP](https://www.precursorintelligence.com/vendors/hp) (Hardware): version not specified - [Proliant Xl190r Gen9](https://www.precursorintelligence.com/product/hp/proliant_xl190r_gen9) by [HP](https://www.precursorintelligence.com/vendors/hp) (Hardware): version not specified - [Proliant Xl230a Gen9](https://www.precursorintelligence.com/product/hp/proliant_xl230a_gen9) by [HP](https://www.precursorintelligence.com/vendors/hp) (Hardware): version not specified - [Proliant Xl230k Gen10](https://www.precursorintelligence.com/product/hp/proliant_xl230k_gen10) by [HP](https://www.precursorintelligence.com/vendors/hp) (Hardware): version not specified - [Proliant Xl250a Gen9](https://www.precursorintelligence.com/product/hp/proliant_xl250a_gen9) by [HP](https://www.precursorintelligence.com/vendors/hp) (Hardware): version not specified - [Proliant Xl450 Gen10](https://www.precursorintelligence.com/product/hp/proliant_xl450_gen10) by [HP](https://www.precursorintelligence.com/vendors/hp) (Hardware): version not specified - [Proliant Xl730f Gen9](https://www.precursorintelligence.com/product/hp/proliant_xl730f_gen9) by [HP](https://www.precursorintelligence.com/vendors/hp) (Hardware): all versions - [Proliant Xl740f Gen9](https://www.precursorintelligence.com/product/hp/proliant_xl740f_gen9) by [HP](https://www.precursorintelligence.com/vendors/hp) (Hardware): version not specified - [Proliant Xl750f Gen9](https://www.precursorintelligence.com/product/hp/proliant_xl750f_gen9) by [HP](https://www.precursorintelligence.com/vendors/hp) (Hardware): version not specified ## How do I fix CVE-2019-11983? 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.hpe.com](https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03917en_us) (Vendor advisory) ## Questions ### What is CVE-2019-11983? CVE-2019-11983 is a high-severity flaw in Integrated Lights-Out 5 Firmware from HP, published on 5 June 2019. It can be attacked from anywhere on the internet without logging in, and nobody has to click anything. If it works, the attacker can take it offline. ### How serious is CVE-2019-11983? It scores 7.0 out of 10 on the CVSS severity scale, which is high. Our risk score for CVE-2019-11983 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-2019-11983 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 1.1%. That can change at any time, which is why we keep watching. ### Which versions does CVE-2019-11983 affect? For Integrated Lights-Out 5 Firmware from HP: up to 1.39. The record lists 39 products in all, each with its versions, under "Who is affected" on this page. ### How do I fix CVE-2019-11983? 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-2019-11983 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