CVE-2026-17170: IBM AIX and PowerVM VIOS denial of service via improper allocation validation
CVE-2026-17170 · Severity: high · CVSS 7.5 · Published 2026-08-20
IBM AIX and PowerVM VIOS are core operating systems for IBM Power Systems servers used in enterprise environments. A remote attacker can trigger a denial of service condition by sending crafted network requests that exploit improper validation of memory allocation sizes, causing the system to crash or become unresponsive and disrupting business operations.
No. Junglewise Threat Intelligence has no report of CVE-2026-17170 being exploited in the wild.
How severe is CVE-2026-17170?
High severity, with a CVSS score of 7.5, published 20 August 2026.
Which products and versions are affected?
IBM Aix 7.2, 7.3; IBM PowerVM VIOS 4.1.
Is there a fix for CVE-2026-17170?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-17170 attacked?
It is attacked over the network.
Am I affected by CVE-2026-17170?
Check whether you run IBM Aix or IBM PowerVM VIOS at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.