CVE-2021-47865

HIGH

7.5

Descricao

ProFTPD 1.3.7a contains a denial of service vulnerability that allows attackers to overwhelm the server by creating multiple simultaneous FTP connections. Attackers can repeatedly establish connections using threading to exhaust server connection limits and block legitimate user access.

Detalhes CVE

Pontuacao CVSS v3.17.5

SeveridadeHIGH

Vetor CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosNONE

Interacao do usuarioNONE

Publicado1/21/2026

Ultima modificacao1/26/2026

Fontenvd

Avistamentos honeypot0

Fraquezas (CWE)

CWE-770

Referencias

http://www.proftpd.org/(disclosure@vulncheck.com)

https://github.com/proftpd/proftpd/issues/1298(disclosure@vulncheck.com)

https://www.exploit-db.com/exploits/49697(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/proftpd-a-remote-denial-of-service(disclosure@vulncheck.com)

Correlacoes IOC

Sem correlacoes registradas

This product uses data from the NVD API but is not endorsed or certified by the NVD.