Description
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to cause kernel memory corruption due to insufficient validation. A crafted filesystem image can trigger an out-of-bounds kernel-stack write during directory reads, causing a system crash or potentially enabling privilege escalation.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| IBM | AIX | 7.2, 7.3 | — |
| IBM | PowerVM VIOS | 4.1 | — |
Advisories 2
- WID-SEC-2026-2858 IBM AIX und VIOS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 4, 2026
- NCSC-2026-0321 Meerdere kwetsbaarheden verholpen in IBM AIX en IBM PowerVM VIOS NCSC-NL (Netherlands) · Aug 21, 2026
References
- https://www.ibm.com/support/pages/node/7283858 vendor-advisory patch