CVE-2019-25364 | MailCarrier 2.51 contains a buffer overflow vulnerability in… | CVSS 9.8 CRITICAL

Description

MailCarrier 2.51 contains a buffer overflow vulnerability in the POP3 USER command that allows remote attackers to execute arbitrary code. Attackers can send a crafted oversized buffer to the POP3 service, overwriting memory and potentially gaining remote system access.

Metadata

CVE ID: CVE-2019-25364
State: PUBLISHED
Assigner: VulnCheck
Reserved: 2026-02-13 17:39 UTC
Published: 2026-02-18 21:55 UTC
Last updated: 2026-07-28 01:46 UTC
Primary CWE: CWE-121
Stack-based Buffer Overflow
Vendor / Product: TABS Laboratories Corporation / Win10 MailCarrier
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 Laboratories Corporation	Win10 MailCarrier	—	2.51

Weakness (CWE)

CWE	Source	Description
CWE-121	cna	Stack-based Buffer Overflow

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 (3)

ExploitDB-47554 https://www.exploit-db.com/exploits/47554
Vendor Homepage https://www.tabslab.com/
VulnCheck Advisory: Win10 MailCarrier 2.51 - 'POP3 User' Remote Buffer Overflow https://www.vulncheck.com/advisories/win-mailcarrier-pop-user-remote-buffer-overflow