CVE-2026-82120 Heap-based Buffer Overflow Vulnerability in HiRDB

Critical 9.8 Published Updated
Exploited in the wild
Not known
Fix
None listed

What is CVE-2026-82120?

CVE-2026-82120 is a critical vulnerability in Hitachi HiRDB Server Version 10, published on 27 Oct 2026.

Official description

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.

Weakness: CWE-122

Which versions are affected by CVE-2026-82120?

How do I fix CVE-2026-82120?

No fix has been published for CVE-2026-82120 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-82120 being exploited?

There is no known exploitation of CVE-2026-82120 in the wild and no public exploit code.

Sources

Also known as GHSA-hvgj-c5wh-75j5.

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