DDoS via Allocation Size Validation in IBM AIX 7.27.3 & PowerVM VIOS 4.1
CVE-2026-17170 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 improper validation of an allocation size.
Vulnerability Analysis
CVE-2026-17170 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.
Weakness Type
Allocation of Resources Without Limits or Throttling
The software allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor.
Products Associated with CVE-2026-17170
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Affected Versions
IBM AIX:- Version 7.2 is affected.
- Version 7.3 is affected.
- Version 4.1 is affected.