CVE-2026-10743
CVE-2026-10743 is a high-severity vulnerability with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-1223.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- EPSS exploit prediction: 0% (19th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-1223
- Published:
- Last modified:
Description
IBM MQ could allow an authenticated attacker to cause a denial of service or corrupt memory due to improper validation of buffer sizes in MQOPEN operations.
Frequently asked questions
- What is CVE-2026-10743?
- IBM MQ could allow an authenticated attacker to cause a denial of service or corrupt memory due to improper validation of buffer sizes in MQOPEN operations.
- How severe is CVE-2026-10743?
- CVE-2026-10743 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2026-10743 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-10743?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2026-10743 published?
- CVE-2026-10743 was published on 2026-10-19 and last updated on 2026-10-20.
References
Other CWE-1223 vulnerabilities
- CVE-2024-2975 — High (CVSS 8.8): A race condition was identified through which privilege escalation was possible in certain configurations.
- CVE-2025-0077 — Medium (CVSS 4.0): In multiple functions of UserController.java, there is a possible lock screen bypass due to a race condition. This…