CVE-2026-86576: Heap-based Buffer Overflow Vulnerability in JP1 Products

Description

Heap-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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

Attack vector

Network

Complexity

Low

Privileges

None

User interaction

None

Confidentiality

High

Integrity

High

Availability

Low

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)0.5% · higher than 39% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

JJ

JP1/Automatic Job Management System 3 - Agent · Hitachi

13-00 before 13-50-31 · source: vendor

JJ

JP1/Automatic Job Management System 3 - Agent Minimal Edition · Hitachi

13-00 before 13-50-31 · source: vendor

JJ

JP1/Automatic Job Management System 3 - Manager · Hitachi

13-00 before 13-50-31 · source: vendor

JP

JP1/Base · Hitachi

11-00 before 12-50-54 · source: vendor

JM

JP1/Integrated Management 3 - Manager · Hitachi

13-00 before 13-50-31 · source: vendor