CVE-2019-25598

MEDIUM 6.2

HeidiSQL Portable 10.1.0.5464 Denial of Service via Buffer Overflow

CVSS Score

6.2

EPSS Score

0.0%

EPSS Percentile

2th

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.

CWE	CWE-787
Vendor	heidisql
Product	heidisql portable
Published	Mar 22, 2026
Last Updated	Mar 23, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Affected Versions

Heidisql / HeidiSQL Portable

10.1.0.5464

References

NVD ↗ CVE.org ↗ EPSS Data ↗

exploit-db.com: https://www.exploit-db.com/exploits/46749 heidisql.com: https://www.heidisql.com/ heidisql.com: https://www.heidisql.com/downloads/releases/HeidiSQL_10.1_64_Portable.zip vulncheck.com: https://www.vulncheck.com/advisories/heidisql-portable-denial-of-service-via-buffer-overflow

Credits

Victor Mondragón