---
id: "CVE-2026-82118"
kind: "vulnerability"
aliases: ["CVE-2026-82118"]
title: "HiRDB database server: stack buffer overflow allows remote code execution"
severity: "critical"
cvss: 9.8
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["database-server", "hirdb", "other", "self-hosted"]
not_affected_if: ["unknown"]
published_at: "2026-10-27T10:16:55+00:00"
first_seen_at: "2026-10-27T10:31:02+00:00"
updated_at: "2026-10-27T10:31:34+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-82118", "first_seen_at": "2026-10-27T10:31:02+00:00"}]
---

# HiRDB database server: stack buffer overflow allows remote code execution

HiRDB, a Hitachi relational database server, has a stack-based buffer overflow in several version 9 and version 10 lines. The sources do not state the attacker's exact capability, but a stack overflow in a network-facing database server is typically exploitable to run code on the server.

_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 through `09-66-22`, and the Additional Function and Version 9(32) variants listed in the advisory.
- unknown for other checks: the sources do not describe a configuration file or command to confirm exposure.

## Fix

- Move HiRDB Server Version 10 to `10-12-01` or later, per the advisory.
- Version 9 installations need the vendor's fixed release; the sources do not name a version for the 9.x line.

## Timeline

- 2026-10-27T10:31:02+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-82118

## 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.

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