Stack-based Buffer Overflow Vulnerability in Hitachi HiRDB Server
CVE-2026-82122

9.4CRITICAL

Key Information:

Vendor

Hitachi
Status
Hirdb Server Version 10
Hirdb Server Version 9
Hirdb Server With Additional Function Version 9
Hirdb Server Version 9(32)
Vendor
CVE Published:
27 October 2026

What is CVE-2026-82122?

A stack-based buffer overflow vulnerability exists in Hitachi HiRDB Server, which may allow an attacker to execute arbitrary code or disrupt service. The affected versions span multiple releases of HiRDB, emphasizing the need for all users to apply available updates promptly to mitigate risks associated with this issue.

Affected Version(s)

HiRDB Server Version 10 10-00 < 10-12-01

HiRDB Server Version 9 09-00 <= 09-66-22

HiRDB Server Version 9(32) 09-02 <= 09-66-22

References

https://www.hitachi.com/products/it/software/security/inf...
vendor-advisory

CVSS V3.1

Score:
9.4
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.