CVE-2025-34107CWE-121

WinaXe 7.7 FTP Client Remote Buffer Overflow

High · published July 15, 2025

CVSS v4.0
8.7
EPSS
1%
Percentile
70.4
In the wild
Unconfirmed
What it is

A buffer overflow vulnerability exists in the WinaXe FTP Client version 7.7 within the FTP banner parsing functionality, WCMDPA10.dll. When the client connects to a remote FTP server and receives an overly long '220 Server Ready' response, the vulnerable component responsible for parsing the banner overflows a stack buffer, leading to arbitrary code execution under the context of the user.

The record
Technical detail
CVSS v4.0
8.7 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.01309 · 70.4th percentile
Weakness
CWE-121 · Stack-based Buffer Overflow
Published
2025-07-15T13:11Z
EPSS history
Timeline
  • 15 JUL 13:11Z
    WinaXe 7.7 FTP Client Remote Buffer Overflow
    cvelistv5