WinaXe 7.7 FTP Client Remote Buffer Overflow
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Passive
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-34107
- 2026-10-03 Alias added: GHSA-78rx-wv2g-87wh
References
More Labf vulnerabilities
- TI-2019-15786 LabF nfsAxe 3.7 Ping Client Buffer Overflow CVSS 4.0HIGH 8.6
- TI-2019-15660 Axessh 4.2 Local Stack-based Buffer Overflow via Log File Name CVSS 4.0HIGH 8.6
- TI-2019-15643 Axessh 4.2 Denial of Service via Log File Name CVSS 4.0MEDIUM 6.9
- TI-2017-13255 Buffer Overflow in the FTP client in LabF nfsAxe 3.7 allows remote FTP servers to execute… CVSS 3.0CRITICAL 9.8
- TI-2019-14255 The FTP client in AceaXe Plus 1.0 allows a buffer overflow via a long EHLO response from an FTP server. CVSS 3.1CRITICAL 9.8
- TI-2017-10805 Buffer overflow in LabF nfsAxe FTP client 3.7 allows an attacker to execute code remotely. CVSS 3.1CRITICAL 9.8
Sources
- CVE-2025-34107 · CVE Program
- CVE-2025-34107 · NVD
- FIRST EPSS
- GHSA-78rx-wv2g-87wh · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences