CVE-2026-86574 Heap-based Buffer Overflow Vulnerability in JP1/Base

CriticalCVSS 9.8 EPSS 0.52%

Published: 2026-10-27 11:37
Updated: 2026-11-04 17:17
Exploit status: No public exploit known

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Description

Heap-based Buffer Overflow Vulnerability in JP1/Base.

This issue affects JP1/Base: from 11-00 before 12-50-54.

Affected products

Product	Affected versions	Fixed in
Hitachi JP1/Base	>= 11-00, < 12-50-54	12-50-54

References

www.hitachi.com vendor-advisory

CVSS v3.1

9.8 Critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

All scores (2)

v3.1 9.8 · hitachi
v3.1 9.8 · hirt@hitachi.co.jp

Weakness & likelihood

EPSS (exploitation probability, 30 days): 0.52% (percentile 44.6)
CWE: CWE-122 Heap-based buffer overflow

Public exploit references

Metadata only. CVERadar never hosts or runs exploit code.

No public exploit references known.