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TI-2026-81063 Aliases CVE-2026-86574GHSA-g8rj-6x73-6prx

Heap-based buffer overflow in Hitachi JP1/Base

Priority MEDIUM 49CWE-122Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-122 and the CVSS impact.

Summary

Hitachi JP1/Base from 11-00 before 12-50-54 contains a heap-based buffer overflow (CWE-122). The flaw is a memory write past the bounds of a heap buffer. The source description does not state the required attacker position or privileges, so the CVSS vector is the only basis for the remote, unauthenticated, no-user-interaction scoring shown in the record: CVSS 3.1 base score 9.8 (critical).

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

Description from the CNA

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

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00519 44th percentileScored 2026-11-07
Fix Fixed JP1/Base (Hitachi): 12-50-54

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
HitachiJP1/Base11-00 to before 12-50-5412-50-54Patch availableCNA
  • JP1/Base VendorHitachi Affected 11-00 to before 12-50-54 Fixed in 12-50-54 Patch available CNA

Remediation

Upgrade Hitachi JP1/Base to version 12-50-54 or later, which is the fixed version for the affected range from 11-00 before 12-50-54.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

  • Fix · CNA JP1/Base (Hitachi) Fixed in 12-50-54

Timeline

  1. 2026-10-27 Threatist record created from CVE-2026-86574
  2. 2026-10-27 Alias added: GHSA-g8rj-6x73-6prx
  3. 2026-11-04 CISA SSVC decision points changed

References

Advisory 1

  • TI-2022-21586 Hitachi Vantara Pentaho Business Analytics Server - Use of Non-Canonical URL Paths for Authorization Decisions KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-21503 Injection in Hitachi Vantara Pentaho Business Analytics Server KEVCVSS 3.1HIGH 8.8
  • TI-2021-11702 An issue was discovered in Hitachi Vantara Pentaho through 9.1 and Pentaho Business… CVSS 3.1HIGH 7.5
  • TI-2005-00319 Multiple TCP implementations with Protection Against Wrapped Sequence Numbers (PAWS) with… CVSS 2.0MEDIUM 5.0
  • TI-2022-21585 Code injection in Hitachi Vantara Pentaho Business Analytics Server CVSS 3.1HIGH 8.8
  • TI-2022-21507 Hitachi Vantara Pentaho Business Analytics Server - Incorrect Permission Assignment for Critical Resource CVSS 3.1HIGH 8.8
See all 256 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences