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CVE-2026-86573

Out-of-bounds Write Vulnerability in Hitachi Disk Array Driver for AIX, Hitachi Disk Array Driver for Virtual I/O Server

Hitachi Hitachi Disk Array Driver for AIXOperating systems
Open in ThreatlineRecord JSON
CVSS
5.1Medium
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.13%Chance of exploitation activity in the next 30 days, higher than 2% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in01-23-/AFixed versionCVE List
Published14 Oct 2026Updated 18 Oct 2026CVE List

What fixes it

  • 01-23-/AHitachi Disk Array Driver for AIXCVE List
  • 01-23-/AHitachi Disk Array Driver for Virtual I/O ServerCVE List

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

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.

Text from CVE List

Affected versions 2

  • Hitachi Disk Array Driver for AIXaffected: 01-00 before 01-23-/ACVE List
  • Hitachi Disk Array Driver for Virtual I/O Serveraffected: 01-04 before 01-23-/ACVE List

References 1