CVE-2019-25598

HeidiSQL Portable 10.1.0.5464 Denial of Service via Buffer Overflow

CVSS 6.9 MEDIUMEPSS 0.1%CWE-787

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 6.9EPSS 0.1%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

22 Mar 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Affected products

Heidisql · HeidiSQL Portable

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