CVE-2026-16877: IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote authenticated attacker to execute arbitrary code…
CVE-2026-16877 · Severity: high · CVSS 8.8 · Published 2026-08-19
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote authenticated attacker to execute arbitrary code due to a stack-based buffer overflow.
No. Junglewise Threat Intelligence has no report of CVE-2026-16877 being exploited in the wild.
How severe is CVE-2026-16877?
High severity, with a CVSS score of 8.8, published 19 August 2026.
Which products and versions are affected?
IBM Aix, IBM Vios. The advisory does not name versions.
Is there a fix for CVE-2026-16877?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2026-16877?
Check whether you run IBM Aix or IBM Vios. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.