CVE-2020-25654

Name: CVE-2020-25654
Creator: NVD / NIST
Published: 2020-11-24T20:15:11.79+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.2/10EPSS 2.00%

Last modified Jun 17, 2026

CVE-2020-25654 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. An ACL bypass flaw was found in pacemaker. An attacker having a local account on the cluster and in the haclient group could use IPC communication with various daemons directly to perform certain tasks that they would be prevented by ACLs from doing if they went through the configuration.. EPSS estimates a 2.00% chance of exploitation in the next 30 days.

Description

An ACL bypass flaw was found in pacemaker. An attacker having a local account on the cluster and in the haclient group could use IPC communication with various daemons directly to perform certain tasks that they would be prevented by ACLs from doing if they went through the configuration.

Metrics

CVSS 3.1

7.2/10

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

EPSS Probability

2.00%

78.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-284

Affected Software

Vendor	Product	Versions	Update
Clusterlabs	Pacemaker	< 1.1.23	—
Clusterlabs	Pacemaker	>= 2.0.0, < 2.0.3	—
Clusterlabs	Pacemaker	2.0.5	Rc1
Debian	Debian Linux	9.0	—

References

https://bugzilla.redhat.com/show_bug.cgi?id=1888191Issue Tracking, Third Party Advisory
https://lists.clusterlabs.org/pipermail/users/2020-October/027840.htmlMailing List, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2021/01/msg00007.htmlMailing List, Third Party Advisory
https://seclists.org/oss-sec/2020/q4/83Mailing List, Third Party Advisory
https://security.gentoo.org/glsa/202309-09
https://bugzilla.redhat.com/show_bug.cgi?id=1888191Issue Tracking, Third Party Advisory
https://lists.clusterlabs.org/pipermail/users/2020-October/027840.htmlMailing List, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2021/01/msg00007.htmlMailing List, Third Party Advisory
https://seclists.org/oss-sec/2020/q4/83Mailing List, Third Party Advisory
https://security.gentoo.org/glsa/202309-09

Timeline

Published: Nov 24, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-25654?

How severe is CVE-2020-25654?

CVE-2020-25654 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 2.00% probability of exploitation in the next 30 days.

How do I fix CVE-2020-25654?

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-2020-25654?

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

Scan your code now

Source: NVD / NIST