---
id: "CVE-2026-82122"
kind: "vulnerability"
aliases: ["CVE-2026-82122"]
title: "HiRDB database server: stack buffer overflow may allow code execution"
severity: "critical"
cvss: 9.4
epss: null
exploited: false
status: "open"
category: "runtime"
products: []
ecosystems: []
tags: ["database", "hirdb", "runtime", "self-hosted"]
not_affected_if: ["unknown"]
published_at: "2026-10-27T10:16:56+00:00"
first_seen_at: "2026-10-27T10:31:03+00:00"
updated_at: "2026-10-27T10:31:46+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-82122", "first_seen_at": "2026-10-27T10:31:03+00:00"}]
---

# HiRDB database server: stack buffer overflow may allow code execution

HiRDB Server, a Hitachi relational database, has a stack-based buffer overflow in several version ranges. The sources do not say what input triggers it, but a stack overflow in a database server can let an attacker run code on the host.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed HiRDB Server version against the affected ranges: Version 10 before `10-12-01`, Version 9 from `09-00` through `09-66-22`, and the 9(32) and Additional Function variants listed in the NVD entry.
- unknown

## Fix

- Move HiRDB Server Version 10 to `10-12-01` or later, per the vendor's advisory.
- Version 9 installs in the listed ranges have no fixed version in the sources; check the vendor advisory.

## Timeline

- 2026-10-27T10:31:03+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-82122

## From the sources

Stack-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.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_