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Vulnerabilities

Vulnerability · CVE-2025-34107

A buffer overflow vulnerability exists in the WinaXe FTP Client version 7.7 within the FTP banner parsing functionality, WCMDPA10.dll.

Published Jul 15, 2025 · catalog updated Apr 7, 2026 · LabF WinaXe FTP Client

Check if you run it

No confirmed exploitation is on record for CVE-2025-34107. EPSS is 1.31%. Act only if a listed version of LabF WinaXe FTP Client is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High8.7
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
1.31%
Remediation
Vendor / distro source
Affected products
vendor LabF WinaXe FTP Client 7.7

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor LabF WinaXe FTP Client 7.77.7

How to fix CVE-2025-34107

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-34107. EPSS is 1.31%. Act only if a listed version of LabF WinaXe FTP Client is installed.

Which versions are affected?

Compare what you have installed with LabF WinaXe FTP Client 7.7 7.7. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 1.31%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jul 15, 2025 · EUVD

    Detected

    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.

  2. Apr 7, 2026 · EUVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2025-34107

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-34107

    30-day exploitation probability 1.31%

    first.org
  • EUVDVulnerability recordEUVD-2025-21424

    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

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 21, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.