CVE-2026-12665

CriticalCVSS 9.8/10Last modified Oct 23, 2026

Description

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.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-121

Affected software

No affected versions have been published.

Timeline

Published: Oct 19, 2026
Last modified: Oct 23, 2026
NVD status: Analyzed

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