CVE-2026-76935: Hitachi JP1/Automatic Job Management System 3 stack-based buffer overflow

CVE-2026-76935 · Severity: critical · CVSS 9.4 · Published 2026-10-27

JP1/Automatic Job Management System 3 is software used by enterprises to automate and manage scheduled jobs across IT infrastructure. A stack-based buffer overflow vulnerability allows remote attackers to crash the system or execute arbitrary code without authentication. An exploit could lead to complete system compromise and access to sensitive job data and credentials.

Technologies: Hitachi JP1/Automatic Job Management System 3 - Agent, Hitachi JP1/Automatic Job Management System 3 - Manager. Vendors: Hitachi.

Quick answers

Is CVE-2026-76935 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-76935 being exploited in the wild.
How severe is CVE-2026-76935?
Critical severity, with a CVSS score of 9.4, published 27 October 2026.
Which products and versions are affected?
Hitachi JP1/Automatic Job Management System 3 - Agent 13-50 to 13-50-04, 13-10 to 13-10-06 (Windows, Linux); Hitachi JP1/Automatic Job Management System 3 - Manager 13-50 to 13-50-04, 13-10 to 13-10-06 (Windows, Linux).
Is there a fix for CVE-2026-76935?
Yes: fixed in JP1/Automatic Job Management System 3 - Manager 13-50-31 (Windows and Linux); JP1/Automatic Job Management System 3 - Agent 13-50-31 (Windows and Linux). Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-76935 attacked?
It is attacked over the network, in a hosted service.
Am I affected by CVE-2026-76935?
Check whether you run Hitachi JP1/Automatic Job Management System 3 - Agent or Hitachi JP1/Automatic Job Management System 3 - Manager at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • Fixed in: JP1/Automatic Job Management System 3 - Manager 13-50-31 (Windows and Linux); JP1/Automatic Job Management System 3 - Agent 13-50-31 (Windows and Linux)

Technical details

A stack-based buffer overflow exists in JP1/Automatic Job Management System 3 Manager and Agent components that can be triggered remotely without authentication or user interaction. The vulnerability allows an attacker to corrupt stack memory, potentially enabling arbitrary code execution with the privileges of the affected service. Version 13-50 through 13-50-04 and 13-10 through 13-10-06 on both Windows and Linux are affected.

Affected products

  • Hitachi JP1/Automatic Job Management System 3 - Manager 13-50 to 13-50-04, 13-10 to 13-10-06 (Windows, Linux)
  • Hitachi JP1/Automatic Job Management System 3 - Agent 13-50 to 13-50-04, 13-10 to 13-10-06 (Windows, Linux)

Timeline

  • 2026-10-27: disclosed

References

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