CVE-2019-25646 CRITICAL

CVE-2019-25646: Tabs Mail Carrier 2.5.1 Buffer Overflow via MAIL FROM

Vendor Tabs
Product Mail Carrier
Weakness CWE-787
Published March 24, 2026
Last update March 24, 2026
View on NVD All CVEs

CVSS base score

9.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 24, 2026 CVE published
March 24, 2026 Record updated