What is CVE-2026-10574?

CVE-2026-10574 is a high-severity vulnerability in IBM Mq Operator, classified under Heap-based Buffer Overflow. CVSS score: 8.8/10. Published 2026-10-19.

How severe is CVE-2026-10574?

High severity. CVSS v3 base score is 8.8 out of 10.

Buffer overflow in IBM Mq Operator

CVE-2026-10574

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.

Vulnerability class: Buffer Overflow

Published 2026-10-19 · last modified 2026-10-19.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

IBM Mq Operator — versions 3.4.1, 3.5.0, 3.8.0

Weakness classification (CWE)

CWE-122 — Heap-based Buffer Overflow

References

www.ibm.com/support/pages/node/7292667 (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-10574?: CVE-2026-10574 is a high-severity vulnerability in IBM Mq Operator, classified under Heap-based Buffer Overflow. CVSS score: 8.8/10. Published 2026-10-19.
How severe is CVE-2026-10574?: High severity. CVSS v3 base score is 8.8 out of 10.