{"id":"CVE-2012-10055","url":"https://www.cyber-defence.io/tools/cve/CVE-2012-10055","generatedAt":"2026-10-27T17:57:55.020Z","title":"ComSndFTP FTP Server version 1.3.7 Beta contains a format string vulnerability in its handling of the USER command.","description":"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.","published":"2025-08-13T21:15:30.000Z","lastModified":"2026-06-16T23:38:45.000Z","status":"Deferred","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":9.3,"severity":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-134"],"affected":[],"epss":{"score":0.02371,"percentile":0.83719,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (2.37%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ftp/comsnd_ftpd_fmtstr.rb","source":"disclosure@vulncheck.com"},{"url":"https://web.archive.org/web/20120317214524/http://ftp.comsnd.com/","source":"disclosure@vulncheck.com"},{"url":"https://www.exploit-db.com/exploits/19024","source":"disclosure@vulncheck.com"},{"url":"https://www.exploit-db.com/exploits/19177","source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/comsndftp-user-format-string-rce","source":"disclosure@vulncheck.com"},{"url":"https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ftp/comsnd_ftpd_fmtstr.rb","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://www.exploit-db.com/exploits/19024","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://www.exploit-db.com/exploits/19177","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2012-10055","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}