CVE-2021-43310

Name: CVE-2021-43310
Creator: NVD / NIST
Published: 2022-09-21T19:15:09.6+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.70%

Last modified Jun 17, 2026

CVE-2021-43310 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A vulnerability in Keylime before 6.3.0 allows an attacker to craft a request to the agent that resets the U and V keys as if the agent were being re-added to a verifier. This could lead to a remote code execution.. EPSS estimates a 1.70% chance of exploitation in the next 30 days.

Description

A vulnerability in Keylime before 6.3.0 allows an attacker to craft a request to the agent that resets the U and V keys as if the agent were being re-added to a verifier. This could lead to a remote code execution.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.70%

74.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Keylime	Keylime	< 6.3.0

References

https://github.com/keylime/keylime/security/advisories/GHSA-2m39-75g9-ff5rMitigation, Third Party Advisory
https://seclists.org/oss-sec/2022/q1/101Exploit, Mailing List, Patch, Third Party Advisory
https://github.com/keylime/keylime/security/advisories/GHSA-2m39-75g9-ff5rMitigation, Third Party Advisory
https://seclists.org/oss-sec/2022/q1/101Exploit, Mailing List, Patch, Third Party Advisory

Timeline

Published: Sep 21, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-43310?

How severe is CVE-2021-43310?

CVE-2021-43310 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.70% probability of exploitation in the next 30 days.

How do I fix CVE-2021-43310?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-43310?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST