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VulnerabilityPublished

CVE-2026-115646: Hitachi HiRDB Server Version 10 · Partial String Comparison

Affects Hitachi HiRDB Server Version 10Source CVE Database V5

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Not known to be exploited · CVSS 9.8 Critical : upgrade to 10-12-01 as a priority.

Data as of 10 Nov 2026, 05:04 UTC

CVSS 3.1 base score
9.8Critical
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (Hitachi)CVSS 3.19.8
Patch
Available – fixed in 10-12-01
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 10 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 9 Nov 2026.

What to do

Upgrade Hitachi HiRDB Server Version 10 to 10-12-01.

Affected software

ProductAffectedFixed in
HitachiHiRDB Server Version 10Affected
  • >=10-00 <10-12-01
Fixed in
  • 10-12-01
HitachiHiRDB Server Version 9Affected
  • >=09-50-06 <=09-66-22
Fixed in–
HitachiHiRDB Server with Additional Function Version 9Affected
  • ≥ 09-50-/F, ≤ 09-66/V
Fixed in–
HitachiHiRDB Server Version 9(32)Affected
  • >=09-50-06 <=09-66-22
Fixed in–
HitachiHiRDB Server with Additional Function Version 9(32)Affected
  • ≥ 09-50-/F, ≤ 09-66-/V
Fixed in–

AI-suggested

Upgrade affected HiRDB Server installations to version 10-12-01 or later, where the vulnerability is fixed. No other mitigations or temporary workarounds are indicated by the vendor advisory.

Description

CVE-2026-115646 is a critical partial string comparison vulnerability (CWE-187) affecting Hitachi HiRDB Server Version 10 and certain versions of Version 9. The flaw exists in HiRDB Server versions from 10-00 up to but not including 10-12-01, and in Version 9 builds from 09-50-06 through 09-66-22. This vulnerability allows an attacker to potentially bypass security checks due to improper string comparison logic. A fix is available starting from version 10-12-01.

References

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