Skip to main content
VulnerabilityPublished Updated

CVE-2026-10649: Red Hat Enterprise Linux 10 · Integer Overflow or Wraparound

Affects Red Hat Enterprise Linux 10Source CVE Database V5

0
Compare

Not known to be exploited · CVSS 8.6 High.

Data as of 30 Oct 2026, 20:25 UTC

CVSS 3.1 base score
8.6High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.5% chance of exploitation in 30 days – higher than 46% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 16 Jun 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Red Hat Enterprise Linux 10pacemakerAffected–Fixed in–
Red Hat Enterprise Linux 10.0 Extended Update SupportpacemakerAffected–Fixed in–
Red Hat Enterprise Linux 7 Extended Lifecycle SupportpacemakerAffected–Fixed in–
Red Hat Enterprise Linux 8pacemakerAffected–Fixed in–
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportpacemakerAffected–Fixed in–
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnpacemakerAffected–Fixed in–

AI-suggested

Red Hat has released official security updates for Red Hat Enterprise Linux 8 and 9 that fix this vulnerability. Users should apply the updated pacemaker packages as detailed in Red Hat advisories RHSA-2026:39322 and RHSA-2026:39323. Refer to https://access.redhat.com/articles/11258 for update instructions. No additional mitigations are required once the update is applied.

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.

References

Community reviews

Loading reviews…