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Fencer Vulns
critical 9.8

CVE-2026-82120 json

Heap-based Buffer Overflow Vulnerability in HiRDB

published 2026-10-27 13 d ago modified 2026-11-04 5 d ago also EUVD-2026-110665

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 30%
public exploits
0
none known

Summary

Heap-based Buffer Overflow Vulnerability in HiRDB.

This issue affects HiRDB Server Version 10: from 10-00 before 10-12-01; HiRDB Server Version 9: from 09-00 through 09-66-22; HiRDB Server with Additional Function Version 9: from 09-00 through 09-66/V; HiRDB Server Version 9(32): from 09-02 through 09-66-22; HiRDB Server with Additional Function Version 9(32): from 09-00 through 09-66-/V.

Patch / fix

  • Hitachi HiRDB Server Version 10 10-08-05, 10-11-02, 10-12-01

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
5 d ago

Exploit prediction

0.36% chance of exploitation in the next 30 days, higher than 30% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Hitachi HiRDB Server Version 10
  • Hitachi HiRDB Server Version 9
  • Hitachi HiRDB Server with Additional Function Version 9
  • Hitachi HiRDB Server Version 9(32)
  • Hitachi HiRDB Server with Additional Function Version 9(32)

Classification

Weakness
  • CWE-122 Heap-based Buffer Overflow

References

Sources

Fencer Vulns 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.