IBM AIX 7.2/7.3 & PowerVM VIOS 4.1 OOB Write RCE/DoS
CVE-2026-16903 Published on August 19, 2026
Vulnerabilities in IBM AIX and PowerVM VIOS
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to execute arbitrary code or cause a denial of service due to an out-of-bounds write.
Vulnerability Analysis
Weakness Type
What is a Memory Corruption Vulnerability?
The software writes data past the end, or before the beginning, of the intended buffer. Typically, this can result in corruption of data, a crash, or code execution. The software may modify an index or perform pointer arithmetic that references a memory location that is outside of the boundaries of the buffer. A subsequent write operation then produces undefined or unexpected results.
CVE-2026-16903 has been classified to as a Memory Corruption vulnerability or weakness.
Products Associated with CVE-2026-16903
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Affected Versions
IBM AIX:- Version 7.2 is affected.
- Version 7.3 is affected.
- Version 4.1 is affected.