CVE-2026-86573 Memory corruption in Hitachi Disk Array Driver for AIX
An out-of-bounds write in Hitachi Disk Array Drivers for AIX and VIOS allows attackers to execute arbitrary code or escalate privileges.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-86573?
CVE-2026-86573 is a medium-severity memory corruption vulnerability in Hitachi Disk Array Driver for AIX, published on 14 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Out-of-bounds write vulnerability in Hitachi Disk Array Driver for AIX and Hitachi Disk Array Driver for Virtual I/O Server.
This issue affects Hitachi Disk Array Driver for AIX: from 01-00 before 01-23-/A; Hitachi Disk Array Driver for Virtual I/O Server: from 01-04 before 01-23-/A.
Weakness: CWE-787
Which versions are affected by CVE-2026-86573?
How do I fix CVE-2026-86573?
No fix has been published for CVE-2026-86573 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-86573 being exploited?
There is no known exploitation of CVE-2026-86573 in the wild and no public exploit code.
Sources
Also known as GHSA-w6wr-j337-qpfv.