Executive brief
IBM AIX and PowerVM VIOS are enterprise operating systems and virtualization platforms used to manage critical business infrastructure. A remote attacker can trigger a heap-based buffer overflow to execute arbitrary code on affected systems, potentially compromising the entire infrastructure stack and all workloads running on it.
Technical details
The vulnerability is a heap-based buffer overflow in IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1 that allows remote code execution. The attack vector is network-based with no authentication or user interaction required. Successful exploitation permits an attacker to execute arbitrary code at the privilege level of the vulnerable service, potentially leading to full system compromise. IBM has released security updates through Service Packs and Fix Packs to remediate this vulnerability.
Affected products
- IBM AIX 7.2, 7.3
- IBM PowerVM VIOS 4.1
Timeline
- 2026-08-20: disclosed