CVE-2026-16863 IBM i is Affected By Out-of-Bounds Read Vulnerability []

High 7.7 Published Updated

A remote authenticated attacker can obtain sensitive information from IBM i operating systems via an out-of-bounds read vulnerability.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-16863?

CVE-2026-16863 is a high-severity vulnerability in Ibm I, published on 12 Aug 2026. Any signed-in user can exploit it over the network, 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 an out-of-bounds read.

Weakness: CWE-125

Which versions are affected by CVE-2026-16863?

It affects 1 product.

Products include Ibm I.

How do I fix CVE-2026-16863?

No fix has been published for CVE-2026-16863 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-16863 being exploited?

There is no known exploitation of CVE-2026-16863 in the wild and no public exploit code.

All Ibm I vulnerabilities

Sources

Also known as GHSA-r7h8-p6qj-6ggm.

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