IBM MQ Buffer Overflow
CVSS score
8.1
EPSS probability
—
Risk score
0.8
Published
18 h ago
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Vulnerability description
CVE AI research
DayBreach AI Explanation
Verified against sourcesSources read
2
Source agreement
Tam uyum
Evidence confidence
%63
Short explanation
A stack buffer overflow vulnerability in IBM MQ (CVE-2026-12665) may allow a remote attacker to execute arbitrary code when processing TLS certificates with malformed distinguished names during channel connection establishment.
This high-severity vulnerability (CVSS 8.1) enables remote code execution without requiring authentication, directly threatening system confidentiality, integrity, and availability.
What should be done?
- Follow the vendor advisory
- Apply the available patches and updates
- Review the guidance on the IBM support page
Chain of evidence and sources
IBM MQ, kanal bağlantısı kurulurken hatalı biçimlendirilmiş ayırt edici adlara sahip TLS sertifikalarını işlerken yığın tampon taşması nedeniyle uzaktan kod çalıştırılmasına izin verebilir.
Açığın CVSS taban puanı 8.1 olup yüksek önem seviyesindedir ve zafiyet için yama referansları mevcuttur.
Show the technical text from the sources
IBM MQ could allow a remote attacker to execute arbitrary code due to a stack buffer overflow when processing TLS certificates with malformed distinguished names during channel connection establishment.
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE: CWE-121
Explanation produced with the local gemini-flash-lite-latest model. Numerical metrics and the KEV, patch and exploit statuses are not determined by AI.
IMPACT: Affected Products and Software
RED HAT CSAF/VEX: Product Impact Check
SCORING: CVSS from Multiple Sources
CVSS Scores
The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.
| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| 8.1 | CVSS V3_1 | HIGH | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H | CVE CNA |
| 8.1 | CVSS V31 | HIGH | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H | NVD |
Patch and Remediation Guide
Solution & Remediation Advisory
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Public exploit and active exploitation status
Verified exploit intelligence
No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.
Weakness Classification and Attack Patterns (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-12665 is associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-12665 weaknesses.
Attack Vector and Accessibility
Official Sources and Advisories
Similar Vulnerabilities
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