CVE-2026-11727 IBM MQ for HPE NonStop is vulnerable to a denial of service issue
Remote attackers can cause denial of service or execute arbitrary code in IBM MQ for HPE NonStop due to improper validation of queue manager responses.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-11727?
CVE-2026-11727 is a high-severity memory corruption vulnerability in IBM MQ for HPE NonStop, published on 18 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
IBM MQ for HPE NonStop 8.1.0 through 8.1.0.40 IBM MQ C client could allow a remote attacker to cause a denial of service or potentially execute arbitrary code due to improper validation of queue manager responses when requesting AMS policy data.
Weakness: CWE-122
Which versions are affected by CVE-2026-11727?
How do I fix CVE-2026-11727?
No fix has been published for CVE-2026-11727 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-11727 being exploited?
There is no known exploitation of CVE-2026-11727 in the wild and no public exploit code.
Sources
Also known as GHSA-7v82-2f2m-8pjm.