ZDF
Sign inSign up

Vulnerabilities

Vulnerability · CVE-2012-10055

ComSndFTP FTP Server version 1.3.7 Beta contains a format string vulnerability in its handling of the USER command.

Published Aug 13, 2025 · catalog updated Jul 15, 2026 · ComSndFTP FTP Server

Last checked Oct 24, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2012-10055. EPSS is 2.37%. Act only if a listed version of ComSndFTP FTP Server is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Critical9.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
2.37%
Remediation
Vendor / distro source
Affected products
vendor ComSndFTP FTP Server 1.3.7 Beta

ComSndFTP FTP Server version 1.3.7 Beta contains a format string vulnerability in its handling of the USER command. By sending a specially crafted username containing format specifiers, a remote attacker can overwrite a hardcoded function pointer in memory (specifically WSACleanup from Ws2_32.dll). This allows the attacker to redirect execution flow and bypass DEP protections using a ROP chain, ultimately leading to arbitrary code execution. The vulnerability is exploitable without authentication and affects default configurations.

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 ComSndFTP FTP Server 1.3.7 Beta1.3.7 Beta

How to fix CVE-2012-10055

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-2012-10055. EPSS is 2.37%. Act only if a listed version of ComSndFTP FTP Server is installed.

Which versions are affected?

Compare what you have installed with ComSndFTP FTP Server 1.3.7 Beta 1.3.7 Beta. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 2.37%. There is no CISA KEV listing. A public exploit reference is linked in Sources. That is not the same as confirmed exploitation. 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. Aug 13, 2025 · EUVD

    Detected

    ComSndFTP FTP Server version 1.3.7 Beta contains a format string vulnerability in its handling of the USER command. By sending a specially crafted username containing format specifiers, a remote attacker can overwrite a hardcoded function pointer in memory (specifically WSACleanup from Ws2_32.dll). This allows the attacker to redirect execution flow and bypass DEP protections using a ROP chain, ul

  2. Jul 15, 2026 · EUVD

    Updated

    ComSndFTP FTP Server version 1.3.7 Beta contains a format string vulnerability in its handling of the USER command. By sending a specially crafted username containing format specifiers, a remote attacker can overwrite a hardcoded function pointer in memory (specifically WSACleanup from Ws2_32.dll). This allows the attacker to redirect execution flow and bypass DEP protections using a ROP chain, ul

Sources

  • CVE.orgVulnerability recordCVE-2012-10055

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2012-10055

    30-day exploitation probability 2.37%

    first.org
  • EUVDVulnerability recordEUVD-2012-6606

    ComSndFTP FTP Server version 1.3.7 Beta contains a format string vulnerability in its handling of the USER command. By sending a specially crafted username containing format specifiers, a remote attacker can overwrite a hardcoded function pointer in memory (specifically WSACleanu

    euvd.enisa.europa.eu
  • Metasploit ModulesPublic exploit moduleexploit_windows/ftp/comsnd_ftpd_fmtstr

    Public module reference (good). Module source is not copied into this catalog.

    rapid7.com

References

Freshness

Last verified in this catalog Oct 24, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 24, 2026
  • Metasploit ModulesOct 23, 2026
  • CVE.orgOct 21, 2026
  • EUVDOct 20, 2026