CVE-2019-25364CWE-121

Win10 MailCarrier 2.51 - 'POP3 User' Remote Buffer Overflow

Critical · published February 18, 2026

CVSS v4.0
9.3
EPSS
1%
Percentile
61.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
9.3 · CRITICAL
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
EPSS
0.00970 · 61.5th percentile
Weakness
CWE-121 · Stack-based Buffer Overflow
Published
2026-02-18T21:55Z
EPSS history
Timeline
  • 18 FEB 21:55Z
    Win10 MailCarrier 2.51 - 'POP3 User' Remote Buffer Overflow
    cvelistv5