CVE-2021-20269

Name: CVE-2021-20269
Creator: NVD / NIST
Published: 2022-03-10T17:41:27.46+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.24%

Last modified Jun 17, 2026

CVE-2021-20269 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. A flaw was found in the permissions of a log file created by kexec-tools. This flaw allows a local unprivileged user to read this file and leak kernel internal information from a previous panic. EPSS estimates a 0.24% chance of exploitation in the next 30 days.

Description

A flaw was found in the permissions of a log file created by kexec-tools. This flaw allows a local unprivileged user to read this file and leak kernel internal information from a previous panic. The highest threat from this vulnerability is to confidentiality. This flaw affects kexec-tools shipped by Fedora versions prior to 2.0.21-8 and RHEL versions prior to 2.0.20-47.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.24%

15.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Kexec-Tools Project	Kexec-Tools	< 2.0.21-8
Kexec-Tools Project	Kexec-Tools	< 2.0.20-47

References

https://bugzilla.redhat.com/show_bug.cgi?id=1934261Issue Tracking, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1934261Issue Tracking, Third Party Advisory

Timeline

Published: Mar 10, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-20269?

How severe is CVE-2021-20269?

CVE-2021-20269 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.

How do I fix CVE-2021-20269?

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-2021-20269?

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

Scan your code now

Source: NVD / NIST