CVE-2021-35937

Name: CVE-2021-35937
Creator: NVD / NIST
Published: 2022-08-25T20:15:09.243+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.4/10EPSS 0.31%

Last modified Jun 17, 2026

CVE-2021-35937 is a medium-severity vulnerability rated 6.4/10 on the CVSS scale. A race condition vulnerability was found in rpm. A local unprivileged user could use this flaw to bypass the checks that were introduced in response to CVE-2017-7500 and CVE-2017-7501, potentially gaining root privileges. EPSS estimates a 0.31% chance of exploitation in the next 30 days.

Description

A race condition vulnerability was found in rpm. A local unprivileged user could use this flaw to bypass the checks that were introduced in response to CVE-2017-7500 and CVE-2017-7501, potentially gaining root privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Metrics

CVSS 3.1

6.4/10

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

EPSS Probability

0.31%

22.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Rpm	Rpm	< 4.18.0
Redhat	Enterprise Linux	6.0
Redhat	Enterprise Linux	7.0
Redhat	Enterprise Linux	8.0
Redhat	Enterprise Linux	9.0
Fedoraproject	Fedora	34

References

https://access.redhat.com/security/cve/CVE-2021-35937Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1964125Issue Tracking, Patch, Vendor Advisory
https://rpm.org/wiki/Releases/4.18.0Release Notes
https://security.gentoo.org/glsa/202210-22Third Party Advisory
https://www.usenix.org/legacy/event/sec05/tech/full_papers/borisov/borisov.pdfExploit, Technical Description, Third Party Advisory
https://access.redhat.com/security/cve/CVE-2021-35937Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1964125Issue Tracking, Patch, Vendor Advisory
https://rpm.org/wiki/Releases/4.18.0Release Notes
https://security.gentoo.org/glsa/202210-22Third Party Advisory
https://www.usenix.org/legacy/event/sec05/tech/full_papers/borisov/borisov.pdfExploit, Technical Description, Third Party Advisory

Timeline

Published: Aug 25, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-35937?

How severe is CVE-2021-35937?

CVE-2021-35937 has a CVSS score of 6.4/10 (MEDIUM severity). The EPSS model estimates a 0.31% probability of exploitation in the next 30 days.

How do I fix CVE-2021-35937?

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-2021-35937?

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

Scan your code now

Source: NVD / NIST