CVE-2026-16929 IBM i is Affected By Multiple Vulnerabilities in Host Servers

Medium 5.3 Published Updated

A remote authenticated attacker can exploit a buffer overflow in IBM i Host Servers to obtain sensitive information.

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-2026-16929?

CVE-2026-16929 is a medium-severity memory corruption vulnerability in Ibm I, published on 13 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to obtain sensitive information due to a buffer overflow.

Weakness: CWE-787

Which versions are affected by CVE-2026-16929?

It affects 1 product.

Products include Ibm I.

How do I fix CVE-2026-16929?

No fix has been published for CVE-2026-16929 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-2026-16929 being exploited?

There is no known exploitation of CVE-2026-16929 in the wild and no public exploit code.

All Ibm I vulnerabilities

Sources

Also known as GHSA-vhv6-344h-4rfq.

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