CVE-2025-2902: Improper Authorization Vulnerability of Maintenance Utility in Hitachi Virtual Storage Platform

Severity: high (CVSS 8.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-06-29 · updated 2026-06-29
Weakness: CWE-862

Description

Improper Authorization Vulnerability of Maintenance Utility in Hitachi Virtual Storage Platform. This issue affects Hitachi Virtual Storage Platform E390, E590, E790, E990, E1090, E390H, E590H, E790H, E1090H: before DKCMAIN Ver. 93-07-26-xx/00, GUM Ver. 93-07-26/00; Hitachi Virtual Storage Platform 5100, 5500, 5100H, 5500H, 5200, 5600, 5200H, 5600H: before DKCMAIN Ver. 90-09-27-00/00, GUM Ver. 90-09-27/00; Hitachi Virtual Storage Platform G130, G150, G350, G370, G700, G900, F350, F370, F700, F900: before DKCMAIN Ver. 88-08-16-xx/00, GUM Ver. 88-08-20/00.

Affected products

Hitachi Virtual Storage Platform 5100, 5500, 5100H, 5500H, 5200, 5600, 5200H, 5600H: before DKCMAIN Ver. 90-09-27-00/00, GUM Ver. 90-09-27/00 — fixed in GUM Ver. 90-09-27/00, DKCMAIN Ver. 90-09-27-00/00
Hitachi Virtual Storage Platform E390, E590, E790, E990, E1090, E390H, E590H, E790H, E1090H: before DKCMAIN Ver. 93-07-26-xx/00, GUM Ver. 93-07-26/00 — fixed in GUM Ver. 93-07-26/00, DKCMAIN Ver. 93-07-26-xx/00
Hitachi Virtual Storage Platform G130, G150, G350, G370, G700, G900, F350, F370, F700, F900: before DKCMAIN Ver. 88-08-16-xx/00, GUM Ver. 88-08-20/00 — fixed in GUM Ver. 88-08-20/00, DKCMAIN Ver. 88-08-16-xx/00

How to fix

Upgrade to a fixed version: Hitachi Virtual Storage Platform 5100, 5500, 5100H, 5500H, 5200, 5600, 5200H, 5600H GUM Ver. 90-09-27/00, DKCMAIN Ver. 90-09-27-00/00; Hitachi Virtual Storage Platform E390, E590, E790, E990, E1090, E390H, E590H, E790H, E1090H GUM Ver. 93-07-26/00, DKCMAIN Ver. 93-07-26-xx/00; Hitachi Virtual Storage Platform G130, G150, G350, G370, G700, G900, F350, F370, F700, F900 GUM Ver. 88-08-20/00, DKCMAIN Ver. 88-08-16-xx/00. Check the vendor advisory for mitigations.

References

https://www.hitachi.com/products/it/storage-solutions/sec_info/2026/2026_305.html

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