What’s Vulnerable › Vulnerabilities

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

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-03-24 · updated 2026-06-17
• Weakness: CWE-787

Description

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

• TABS Laboratories Corporation Win10 MailCarrier: 2.5.1

References

• https://www.exploit-db.com/exploits/46547
• https://www.vulncheck.com/advisories/tabs-mail-carrier-buffer-overflow-via-mail-from

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