CVE-2026-10574

8.8High

Published 19 Oct 2026 · NVD status: Received · AI triage by gemini-3.8-flash

8.8High

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None
Impact: Full C/I/A compromise
Weakness: CWE-122

Impact

Authenticated network attackers can crash the broker or potentially execute arbitrary code. They need valid queue credentials to issue MQPUT or MQPUT1 calls.

Root cause

A heap-based buffer overflow occurs when parsing malformed message handle properties during MQPUT and MQPUT1 operations.

Affected systems

IBM MQ (versions not listed — check the vendor advisory).

CVSS v3.1 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Fix & remediation

Upgrade IBM MQ to the patched release specified in IBM advisory 7292667; if you cannot patch immediately, restrict MQPUT permissions to trusted accounts only.

AI-suggested. Run it in staging first and check it against the vendor advisory. Why?

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NVD description

IBM MQ could allow an authenticated attacker to cause a denial of service or potentially execute arbitrary code due to a heap buffer overflow when processing MQPUT or MQPUT1 operations with malformed message handle properties.

References

https://www.ibm.com/support/pages/node/7292667

Source: nvd.nist.gov/vuln/detail/CVE-2026-10574