CVE-2019-25364 CRITICAL

CVE-2019-25364: Win10 MailCarrier 2.51 - 'POP3 User' Remote Buffer Overflow

Vendor Tabs Laboratories Corporation
Product Win10 MailCarrier
Weakness CWE-121
Published February 18, 2026
Last update February 19, 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

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.

Key dates

02Disclosure timeline

February 18, 2026 CVE published
February 19, 2026 Record updated