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Vulnerability · Published Oct 27, 2026 · Assigned by Hitachi

CVE-2026-86575Stack-based Buffer Overflow Vulnerability in JP1 Products

Critical 9.4

In plain English

A critical-severity stack buffer overflow in JP1/Automatic Job Management System 3 - Agent from Hitachi. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities).

Severity (CVSS 3.1)9.4Critical
Exploit odds (30 days)0.5%top 60.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Stack-based Buffer Overflow Vulnerability in JP1 Products. This issue affects JP1/Integrated Management 3 - Manager: from 13-00 before 13-50-31; JP1/Automatic Job Management System 3 - Manager: from 13-00 before 13-50-31; JP1/Automatic Job Management System 3 - Agent: from 13-00 before 13-50-31; JP1/Automatic Job Management System 3 - Agent Minimal Edition: from 13-00 before 13-50-31; JP1/Base: from 11-00 before 12-50-54.

Affected products (as reported)

VendorProductVersions
Hitachi JP1/Integrated Management 3 - Manager 13-00 – before 13-50-31
Hitachi JP1/Automatic Job Management System 3 - Manager 13-00 – before 13-50-31
Hitachi JP1/Automatic Job Management System 3 - Agent 13-00 – before 13-50-31
Hitachi JP1/Automatic Job Management System 3 - Agent Minimal Edition 13-00 – before 13-50-31
Hitachi JP1/Base 11-00 – before 12-50-54

Weakness: CWE-121 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

References