CVE-2026-86573

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

State: Published
Severity: 5.1 Medium
Published: Oct 14, 2026
Updated: Oct 18, 2026
Reserved: Sep 8, 2026

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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.

Scores

CVSS	Score	Vector	Source
3.1	5.1 Medium	CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H	Hitachi

Weaknesses

CWE-787 Out-of-bounds write

Affected Products

Product	Versions
Hitachi Disk Array Driver for AIXHitachi	01-00 to before 01-23-/AAffectedfrom 01-23-/ANot affected
Hitachi Disk Array Driver for Virtual I/O ServerHitachi	01-04 to before 01-23-/AAffectedfrom 01-23-/ANot affected

References

https://www.hitachi.com/products/it/software/security/info/vuls/hitachi-sec-2026-137/index.html

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