---
id: CVE-2018-25231
title: >-
  HeidiSQL 9.5.0.5196 contains a denial of service vulnerability that allows
  local attackers to crash the application by supplying an excessively long file
  path in the logging preferences
summary: >-
  HeidiSQL 9.5.0.5196 contains a denial of service vulnerability that allows
  local attackers to crash the application by supplying an excessively long file
  path in the logging preferences. Attackers can input a buffer-overflow payload
  thro…
severity: medium
cvss: 6.2
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-98
vendor: heidisql
product: heidisql
affected:
  - heidisql <= 9.5.0.5196
published: '2026-03-30'
updated: '2026-10-07'
sourceUpdated: '2026-10-07T08:10:00.200'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2018-25231'
references:
  - url: 'https://www.exploit-db.com/exploits/45806'
    label: disclosure@vulncheck.com
  - url: 'https://www.heidisql.com/'
    label: disclosure@vulncheck.com
  - url: 'https://www.heidisql.com/download.php'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/heidisql-denial-of-service-via-preferences
    label: disclosure@vulncheck.com
tags:
  - nvd
epss: 0.00206
epssPercentile: 0.09692
ingestedAt: '2026-10-07T08:20:03.909Z'
---

## Overview

HeidiSQL 9.5.0.5196 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an excessively long file path in the logging preferences. Attackers can input a buffer-overflow payload through the SQL log file path field in Preferences > Logging to trigger an application crash.

## Affected

- `heidisql <= 9.5.0.5196`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.