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CriticalVulnerabilityCVE-2026-76936updated 27 Oct 2026, 13:18 UTC

JP1 Automatic Job Management System 3 can crash or be taken over via memory overflow

A bug lets a specially crafted input overflow a memory buffer in this job scheduling software. An attacker could use it to crash the service or possibly run their own code on the server.

Fix availableOfficial, 2 sources
SeverityCriticalCVSS 9.4 of 10
Being exploited?UnclearNo reports either way yet
Fix available?YesUpgrade to 13-50-31 or later · since 27 Oct 2026
How sure is this?Official, 2 sourcesBacked by an official source

What happened

A stack-based buffer overflow exists in the Manager component of JP1/Automatic Job Management System 3, versions from 10-00 before 13-50-31.

Why it is dangerous: A successful attack could let an attacker crash the job manager or run arbitrary code on the server, disrupting automated business processes. Organizations running this job scheduler on their management servers are at risk.

Are you affected?

You are affected if you run JP1/Automatic Job Management System 3 Manager from 10-00 up to, but not including, 13-50-31.

JP1/Automatic Job Management System 3 - Manager: versions 10-00 through 13-50-30

What to do

  1. Upgrade JP1/Automatic Job Management System 3 Manager to version 13-50-31 or later
  2. Restrict network access to the Manager service to trusted hosts until the upgrade is done
  3. Review logs for unusual crashes or unexpected activity on the Manager

Timeline

  1. 27 Oct 2026, 10:16 UTC
    Publicly disclosed
  2. 27 Oct 2026, 10:16 UTC
    Reported by NVD · NVD
  3. 27 Oct 2026, 10:17 UTC
    Picked up by Zero Radar
  4. 27 Oct 2026, 13:18 UTC
    GitHub Advisory reported on it · GitHub Advisory
  5. 27 Oct 2026, 13:18 UTC
    Fix: Upgrade to 13-50-31 or later

Sources 2 reports, oldest first

Official vendor, government CERT or advisory database

Technical details

ID
CVE-2026-76936 · GHSA-gpw3-3j7x-ghc6
CVSS
9.4 / 10
EPSS
0.5% chance of exploitation within 30 days
Disclosed
27 Oct 2026, 10:16 UTC
On Zero Radar
27 Oct 2026, 10:17 UTC (1 min after disclosure)
Last change
27 Oct 2026, 13:18 UTC

The plain-language parts and the attack diagram were written by an AI model (anthropic/claude-haiku-5.5) from the sources above. Facts like versions, exploitation and dates come from the sources themselves. How Zero Radar works

JP1 Automatic Job Management System 3 can crash or be taken over via memory overflow · Zero Radar