Denial of Service in HeidiSQL Affects Local Users
CVE-2018-25231

6.9MEDIUM

Key Information:

Vendor

Heidisql

Status
Heidisql
Vendor
CVE Published:
30 March 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2018-25231?

HeidiSQL 9.5.0.5196 contains a vulnerability that permits attackers to cause a denial of service by providing an overly long file path in the logging preferences. When this path is entered in the SQL log file field within the Preferences > Logging settings, it can result in an application crash. This issue highlights a critical concern regarding user input validation in the application.

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Affected Version(s)

HeidiSQL 9.5.0.5196

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2018-25231 - Proof of Concept

References

https://www.exploit-db.com/exploits/45806
exploit
https://www.heidisql.com/
product
https://www.heidisql.com/download.php
product

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Victor Mondragón
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