Heap-based Buffer Overflow in HiRDB by Hitachi
CVE-2026-82120

9.8CRITICAL

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-2026-82120?

A heap-based buffer overflow vulnerability exists in HiRDB, affecting multiple versions of HiRDB Server. This vulnerability can potentially allow an attacker to execute arbitrary code, leading to unauthorized access and compromise of sensitive data. The issue arises in the handling of data within the memory heap, making it crucial for users and organizations relying on affected HiRDB versions to apply the necessary patches and mitigate risks associated with this security flaw.

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:
9.8
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

.