---
id: "CVE-2026-86575"
kind: "vulnerability"
aliases: ["CVE-2026-86575"]
title: "Hitachi JP1 job management: stack buffer overflow in several products"
severity: "critical"
cvss: 9.4
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["enterprise", "hitachi", "infrastructure", "job-scheduling", "jp1", "linux", "windows"]
not_affected_if: ["product-not-installed", "version-outside-range"]
published_at: "2026-10-27T10:16:56+00:00"
first_seen_at: "2026-10-27T10:31:03+00:00"
updated_at: "2026-10-27T10:31:43+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-86575", "first_seen_at": "2026-10-27T10:31:03+00:00"}]
---

# Hitachi JP1 job management: stack buffer overflow in several products

JP1 is Hitachi's enterprise IT operations and job scheduling suite, and several of its manager, agent and base components have a stack-based buffer overflow. The sources do not state the trigger or the exact impact, but a stack overflow in this kind of server can let an attacker run code on the affected host.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed JP1/Base version with the product's version command or the installed package list; affected if below `12-50-54` for 12.x or `11-00` to `12-50-54` range.
- Check JP1/Integrated Management 3 - Manager, JP1/Automatic Job Management System 3 Manager, Agent and Agent Minimal Edition: affected if from `13-00` before `13-50-31`.
- Confirm whether these components are running and reachable from the network.

## Fix

- Upgrade JP1/Integrated Management 3 - Manager, JP1/Automatic Job Management System 3 Manager, Agent and Agent Minimal Edition to `13-50-31` or later.
- Upgrade JP1/Base to `12-50-54` or later.
- Check the vendor advisory for the exact patch files; the sources do not list them.

## Timeline

- 2026-10-27T10:31:03+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-86575

## From the sources

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.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_