CVE-2022-2735

Name: CVE-2022-2735
Creator: NVD / NIST
Published: 2022-09-06T18:15:14.88+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.30%

Last modified Jun 17, 2026

CVE-2022-2735 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. A vulnerability was found in the PCS project. This issue occurs due to incorrect permissions on a Unix socket used for internal communication between PCS daemons. EPSS estimates a 0.30% chance of exploitation in the next 30 days.

Description

A vulnerability was found in the PCS project. This issue occurs due to incorrect permissions on a Unix socket used for internal communication between PCS daemons. A privilege escalation could happen by obtaining an authentication token for a hacluster user. With the "hacluster" token, this flaw allows an attacker to have complete control over the cluster managed by PCS.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

0.30%

21.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Clusterlabs	Pcs	>= 0.10.5, <= 0.11.3
Debian	Debian Linux	11.0

References

https://access.redhat.com/security/cve/CVE-2022-2735Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2116815Issue Tracking, Patch, Third Party Advisory
https://www.debian.org/security/2022/dsa-5226Third Party Advisory
https://www.openwall.com/lists/oss-security/2022/09/01/4Mailing List, Release Notes, Third Party Advisory
https://access.redhat.com/security/cve/CVE-2022-2735Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2116815Issue Tracking, Patch, Third Party Advisory
https://www.debian.org/security/2022/dsa-5226Third Party Advisory
https://www.openwall.com/lists/oss-security/2022/09/01/4Mailing List, Release Notes, Third Party Advisory

Timeline

Published: Sep 6, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-2735?

How severe is CVE-2022-2735?

CVE-2022-2735 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.30% probability of exploitation in the next 30 days.

How do I fix CVE-2022-2735?

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-2022-2735?

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

Scan your code now

Source: NVD / NIST