CVE-2021-47865

HIGH

7.5

Description

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.

Details CVE

Score CVSS v3.17.5

SeveriteHIGH

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

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie1/21/2026

Derniere modification1/26/2026

Sourcenvd

Observations honeypot0

Faiblesses (CWE)

CWE-770

References

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)

Correlations IOC

Aucune correlation enregistree

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