Quick answers
- Is CVE-2026-17165 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-17165 being exploited in the wild.
- How severe is CVE-2026-17165?
- 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-2026-17165?
- 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-2026-17165 attacked?
- It is attacked over the network, in an operating system.
- Am I affected by CVE-2026-17165?
- 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.
Technical details
This vulnerability is a NULL pointer dereference in IBM AIX 7.2, 7.3, and PowerVM VIOS 4.1 that allows a remote attacker to trigger a denial of service condition. The root cause involves improper null pointer validation in a network-accessible component, which can be exploited without authentication. An attacker can send a specially crafted remote request that causes the affected system to dereference a null pointer, resulting in a process crash or system hang. IBM has released security updates through Service Packs and Fix Packs for supported releases under active fix support.
Affected products
- IBM AIX 7.2, 7.3
- IBM PowerVM VIOS 4.1
Timeline
- 2026-08-20: disclosed
- 2026-08-21: advisory: IBM security bulletin updated with installation instructions