CVE-2019-25646: Tabslab Mailcarrier

Critical severity, CVSS 9.8. EPSS: 0.9% chance of exploitation in the next 30 days.

Tabs Mail Carrier 2.5.1 contains a buffer overflow vulnerability in the MAIL FROM SMTP command that allows remote attackers to execute arbitrary code by sending a crafted MAIL FROM parameter. Attackers can connect to the SMTP service on port 25 and send a malicious MAIL FROM command with an oversized buffer to overwrite the EIP register and execute a bind shell payload.

Affected products

• Tabslab Mailcarrier: version 2.5.1 only

Published 2026-03-24. Last modified 2026-06-17.