Is CVE-2026-12727 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-12727?

CVE-2026-12727 has a CVSS v3 severity of MEDIUM (4.3).

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CVE-2026-12727

Description

IBM MQ could allow an authenticated attacker to cause potential process instability due to an off-by-one buffer overflow when processing specially crafted object names.