CVE-2019-25646 | Tabs Mail Carrier 2.5.1 contains a buffer overflow vulnerabi… | CVSS 9.8 CRITICAL

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.

Metadata

CVE ID: CVE-2019-25646
State: PUBLISHED
Assigner: VulnCheck
Reserved: 2026-03-24 11:06 UTC
Published: 2026-03-24 11:27 UTC
Last updated: 2026-07-15 01:24 UTC
Primary CWE: CWE-787
Out-of-bounds Write
Vendor / Product: Tabs / Mail Carrier
Sources: cve.org · NVD

Severity & Metrics

9.8 CRITICAL CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC — CISA Coordinator

Exploitation: PoC
Automatable: yes
Tech. Impact: total

Affected products (1)

Vendor	Product	Platform	Versions
Tabs	Mail Carrier	—	2.5.1

Weakness (CWE)

CWE	Source	Description
CWE-787	cna	Out-of-bounds Write

CVSS scores (2)

Score	Severity	Version	Source	Vector
9.8	CRITICAL	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.3	CRITICAL	4.0	cna	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

References (2)

ExploitDB-46547 https://www.exploit-db.com/exploits/46547
VulnCheck Advisory: Tabs Mail Carrier 2.5.1 Buffer Overflow via MAIL FROM https://www.vulncheck.com/advisories/tabs-mail-carrier-buffer-overflow-via-mail-from