Cyber Resilience

CVE-2026-10649

HighUpdated

Published: 16 June 2026

Published
16 June 2026
Modified
30 June 2026
KEV Added
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Patch
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CVSS Score v3.1 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
EPSS Score 0.0044 35.3th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2026-10649 is a high-severity Integer Overflow or Wraparound (CWE-190) vulnerability in Redhat (inferred from references). Its CVSS base score is 8.6 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 35.3th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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…

more

a denial of service (DoS) in the CIB remote listener. This can result in the affected service crashing.

CWE(s)
CWE-190

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1499.004 Application or System Exploitation Impact
Adversaries may exploit software vulnerabilities that can cause an application or system to crash and deny availability to users.
attack.mitre.org →
Why these techniques?

Unauthenticated remote exploitation of integer overflow in public-facing CIB listener directly enables T1190; resulting service crash is T1499.004 Application or System Exploitation.

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

Affected Assets

Redhat
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inferred from references and description; NVD did not file a CPE for this CVE

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References