Medium severity · published Mar 22, 2026
CVE-2019-25598
HeidiSQL Portable 10.1.0.5464 Denial of Service via Buffer Overflow
6.2
CVSS
0.1%
EPSS
No
On KEV
Description
HeidiSQL Portable 10.1.0.5464 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an excessively long string in the password field. Attackers can paste a buffer overflow payload into the password input during Microsoft SQL Server login to trigger an application crash.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 4% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HP
HeidiSQL Portable · Heidisql
10.1.0.5464 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-25598
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-25598
www.exploit-db.com
https://www.exploit-db.com/exploits/46749
www.heidisql.com
https://www.heidisql.com/
www.heidisql.com
https://www.heidisql.com/downloads/releases/HeidiSQL_10.1_64_Portable.zip
www.vulncheck.com
https://www.vulncheck.com/advisories/heidisql-portable-denial-of-service-via-buffer-overflow