---
id: "CVE-2026-76935"
kind: "vulnerability"
aliases: ["CVE-2026-76935"]
title: "JP1 Automatic Job Management System 3: stack buffer overflow enables code execution"
severity: "critical"
cvss: 9.4
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["enterprise", "hitachi", "job-scheduling", "jp1", "other", "windows"]
not_affected_if: ["version-13-50-31-or-later"]
published_at: "2026-10-27T10:16:55+00:00"
first_seen_at: "2026-10-27T10:31:02+00:00"
updated_at: "2026-10-27T10:31:48+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-76935", "first_seen_at": "2026-10-27T10:31:02+00:00"}]
---

# JP1 Automatic Job Management System 3: stack buffer overflow enables code execution

JP1/Automatic Job Management System 3 Manager has a stack-based buffer overflow, a memory corruption flaw that can let an attacker crash the service or run code on the server. The sources list affected Manager versions from 10-00 before 13-50-31 and a CVSS score of 9.4.

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

## How to check

- Check the installed JP1/AJS3 Manager version against the affected range 10-00 through 13-50-30 (`unknown` for the exact command; consult the Hitachi product documentation)
- Confirm whether the Manager service is reachable from untrusted networks (unknown from the sources)

## Fix

- Upgrade JP1/Automatic Job Management System 3 Manager to 13-50-31 or later (per the vendor advisory; confirm on the Hitachi JP1 security page)

## Timeline

- 2026-10-27T10:31:02+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-76935

## From the sources

Stack-based Buffer Overflow Vulnerability in JP1/Automatic Job Management System 3.


This issue affects JP1/Automatic Job Management System 3 - Manager: from 10-00 before 13-50-31.

---

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