SECURITYCRITICALCVE-2026-76936

CVE-2026-76936: Hitachi JP1/Automatic Job Management System 3 Manager Buffer Overflow

CVE-2026-76936 is a critical buffer overflow in Hitachi JP1/AJS3 Manager 10-00 through releases before 13-50-31. Upgrade to 13-50-31.

Dylan H.

Security Team

October 28, 2026
1 min read
CVE-2026-76936: Hitachi JP1/Automatic Job Management System 3 Manager Buffer Overflow

Critical severity

Rated critical. Prioritise patching — see the remediation guidance below.

Affected Products

  • JP1/Automatic Job Management System 3 - Manager 10-00 before 13-50-31

Executive Summary

CVE-2026-76936 is a buffer overflow in the Manager component of Hitachi JP1/Automatic Job Management System 3, scored CVSS 9.4. NVD describes it as stack-based; VulDB classifies it as a generic CWE-120 overflow. It was published October 27, 2026 under advisory Hitachi-SEC-2026-140.

Affected Versions

ComponentAffectedFixed
JP1/AJS3 Manager10-00 before 13-50-3113-50-31

Exploitation Status

No public exploit or active exploitation is known, and the CVE is not in CISA KEV.

Remediation

  1. Upgrade JP1/AJS3 Manager to 13-50-31 or later.
  2. Restrict access to Manager service ports to trusted hosts.
  3. Monitor for service crashes and unexpected restarts.

Related CVEs

CVE-2026-76932, CVE-2026-76933, CVE-2026-76934, CVE-2026-76935, CVE-2026-76937.

References