What’s Vulnerable › Vulnerabilities

CVE-2019-25598: HeidiSQL Portable 10.1.0.5464 Denial of Service via Buffer Overflow

• Severity: medium (CVSS 6.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-03-22 · updated 2026-06-17
• Weakness: CWE-787

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.

Affected products

• HeidiSQL Portable: 10.1.0.5464

References

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

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