# CVE-2026-76937: Heap-based Buffer Overflow Vulnerability in JP1/Automatic Job Management System 3

Status: published. Published: 2026-10-27. Updated: 2026-11-04.

Heap-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.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Hitachi / JP1/Automatic Job Management System 3 - Manager: ≥ 10-00; < 13-50-31 (affected, custom); unaffected at 13-50-31; unaffected at 12-60-53; unaffected at 11-50-39. Source: CNA: Hitachi

## Severity and prioritization

- CVSS 3.1: 9.4 (critical); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L; source: CNA: Hitachi

- CVSS 3.1: 9.4 (critical); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L; source: NVD: hirt@hitachi.co.jp

- CISA KEV: No listing in collected sources

- EPSS: 0.45% as of 2026-11-04; percentile 39.51%

- SSVC: exploitation none; automatable yes; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-122

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://www.hitachi.com/products/it/software/security/info/vuls/hitachi-sec-2026-142/index.html (CNA: Hitachi; vendor-advisory)

- https://www.hitachi.com/products/it/software/security/info/vuls/hitachi-sec-2026-142/index.html (hirt@hitachi.co.jp)

## Provenance

- CNA: Hitachi: https://www.cve.org/CVERecord?id=CVE-2026-76937; retrieved 2026-11-04; source updated 2026-11-04

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-76937; retrieved 2026-11-04; source updated 2026-11-04

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-76937; retrieved 2026-11-04; source updated Not reported

Revision: 31a33ca03936dc1c2c77d70f0d46bc29ada9dbf0c5847ab94051c9137f41807f

Canonical: https://y2.dev/cve/CVE-2026-76937

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