IBM AIX 7.2-7.3 / PowerVM VIOS 4.1 DoS via stack overflow
CVE-2026-18828 Published on August 20, 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 cause a denial of service due to a stack-based buffer overflow.
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-2026-18828 has been classified to as a Memory Corruption vulnerability or weakness.
Products Associated with CVE-2026-18828
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Affected Versions
IBM AIX:- Version 7.2 is affected.
- Version 7.3 is affected.
- Version 4.1 is affected.