Medium severity · published Mar 30, 2026
CVE-2018-25231
HeidiSQL 9.5.0.5196 Denial of Service via Preferences
5.5
CVSS
0.2%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 11% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HE
HeidiSQL · Heidisql
9.5.0.5196 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-25231
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-25231
Exploit
https://www.exploit-db.com/exploits/45806
Product
https://www.heidisql.com/
Product
https://www.heidisql.com/download.php
Third Party Advisory
https://www.vulncheck.com/advisories/heidisql-denial-of-service-via-preferences