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Fencer Intel
critical 9.4

CVE-2026-86577 json

Out-of-bounds Write Vulnerability in JP1 Products

published 15d ago modified 7d ago also EUVD-2026-110653

cvss
9.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 40%
public exploits
0
none known

Summary

Out-of-bounds Write Vulnerability in JP1 Products.

This issue affects JP1/Integrated Management 3 - Manager: from 13-00 before 13-50-31; JP1/Automatic Job Management System 3 - Manager: from 13-00 before 13-50-31; JP1/Automatic Job Management System 3 - Agent: from 13-00 before 13-50-31; JP1/Automatic Job Management System 3 - Agent Minimal Edition: from 13-00 before 13-50-31; JP1/Base: from 11-00 before 12-50-54.

Patch / fix

  • Hitachi JP1/Integrated Management 3 - Manager 13-50-31
  • Hitachi JP1/Automatic Job Management System 3 - Manager 13-50-31
  • Hitachi JP1/Automatic Job Management System 3 - Agent 13-10-31, 13-50-31
  • Hitachi JP1/Automatic Job Management System 3 - Agent Minimal Edition 13-50-31
  • Hitachi JP1/Base 11-50-31, 12-50-54

Is CVE-2026-86577 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
7d ago

Exploit prediction

0.46% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-11).

CVSS scores

assigned by version score vector
CNA 3.1 9.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

Affected products

  • Hitachi JP1/Integrated Management 3 - Manager
  • Hitachi JP1/Automatic Job Management System 3 - Manager
  • Hitachi JP1/Automatic Job Management System 3 - Agent
  • Hitachi JP1/Automatic Job Management System 3 - Agent Minimal Edition
  • Hitachi JP1/Base

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.