---
id: "CVE-2026-86577"
kind: "vulnerability"
aliases: ["CVE-2026-86577"]
title: "JP1 products: out-of-bounds write flaw in multiple management tools"
severity: "critical"
cvss: 9.4
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["enterprise-it-management", "hitachi", "infrastructure", "job-scheduling", "jp1"]
not_affected_if: ["version-outside-listed-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-2026-86577", "first_seen_at": "2026-10-27T10:31:03+00:00"}]
---

# JP1 products: out-of-bounds write flaw in multiple management tools

JP1 is Hitachi's enterprise IT management suite, and several of its components contain an out-of-bounds write flaw. The sources do not say which input triggers it or what an attacker gains beyond memory corruption in the affected service.

_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 JP1 version command or the product's installed-software list; compare it against `12-50-54` and later.
- Check the JP1/Integrated Management 3 - Manager and JP1/Automatic Job Management System 3 Manager, Agent and Agent Minimal Edition versions against `13-50-31`.
- unknown for any other check, since the sources do not name a command or file.

## Fix

- Upgrade JP1/Base from 11-00 or 12-00 range to `12-50-54` or later.
- Upgrade JP1/Integrated Management 3 - Manager and JP1/Automatic Job Management System 3 (Manager, Agent, Agent Minimal Edition) from 13-00 range to `13-50-31` or later.
- Vendor advisory details and patch files are not in the sources; check Hitachi's JP1 security page.

## Timeline

- 2026-10-27T10:31:03+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-86577

## From the sources

Out-of-bounds Write 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_