PT-2026-26986 · Heidisql · Heidisql Portable

Victor Mondragón · Published 2026-03-22 · Updated 2026-03-22 · CVE-2019-25598

Positive Technologies (AI Summary)

CVSS v3.1

6.2

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions HeidiSQL Portable version 10.1.0.5464

Description A denial of service issue allows local attackers to crash the application by supplying an excessively long string in the password field. This occurs when a buffer overflow payload is pasted into the password input during Microsoft SQL Server login.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2019-25598

Affected Products

Heidisql Portable

References · 5

• 🔥 https://exploit-db.com/exploits/46749 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2019-25598 · Security Note
• https://heidisql.com/downloads/releases/HeidiSQL_10.1_64_Portable.zip · Note
• https://vulncheck.com/advisories/heidisql-portable-denial-of-service-via-buffer-overflow · Note
• https://heidisql.com · Note