CVE-2026-10649

HIGH EPSS 35.2%

Published Jun 16, 20262w ago · Modified Jun 17, 20262w ago

8.6 CVSS 3.1

High

Published Jun 16, 2026 2w ago

Last Modified Jun 17, 2026 2w ago

Description

A flaw was found in Pacemaker. An unauthenticated remote attacker can exploit an integer overflow vulnerability in the remote message decompression process. By sending a specially crafted compressed remote message before authentication, an attacker can cause memory corruption, leading to a denial of service (DoS) in the CIB remote listener. This can result in the affected service crashing.

CVSS Details

Base Score

8.6

Exploitability

3.9

Impact

4.7

Vector string

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

Attack Vector Network

Attack Complexity Low

Privileges Required None

User Interaction None

Scope Unchanged

Confidentiality Low

Integrity Low

Availability High

Threat Intelligence

EPSS Exploit Probability

35.2% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-190 Integer Overflow or Wraparound Numeric Error

References 4

openwall.com http://www.openwall.com/lists/oss-security/2026/06/16/6
access.redhat.com https://access.redhat.com/security/cve/CVE-2026-10649
bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=2462817
github.com https://github.com/clusterLabs/pacemaker/pull/4128

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.