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Vulnerability details

CVE-2026-86574

Hitachi JP1/Base

Heap-based Buffer Overflow Vulnerability in JP1/Base

CVSS 3.1

9.8Critical

Official description

Heap-based Buffer Overflow Vulnerability in JP1/Base. This issue affects JP1/Base: from 11-00 before 12-50-54.

CVSS scores

Score	Version	Source	Vector
9.8Critical	3.1	CVEProject cvelistV5 (CNA) (Hitachi)	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`

Affected products

Vendor	Product	Versions	Source
Hitachi	JP1/Base	11-00 ≤ v < 12-50-54	CVEProject cvelistV5 (CNA)

References and advisories

1

https://www.hitachi.com/products/it/software/security/info/vuls/hitachi-sec-2026-156/index.html vendor-advisory

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Details

Published: 2026-10-27
Last updated: 2026-11-04
State: Published
Assigner (CNA): Hitachi
Kolun priority: 26 · Low

Exploit prediction (EPSS)

0.51%

Probability of exploitation in 30 days

44.4%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: Yes
Exploitation: None
Technical impact: Total

Weaknesses (CWE)

CWE-122
Heap-based buffer overflow