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CVE-2021-47865

🗓️ 21 Jan 2026 18:16:00Reported by ubuntu.comType 
ubuntucve
 ubuntucve
🔗 ubuntu.com👁 14 Views

ProFTPD 1.3.7a denial of service via multiple simultaneous FTP connections exhausts server limits.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2021-47865
21 Jan 202617:27
–attackerkb
alpinelinux
AlpineLinux
CVE-2021-47865
21 Jan 202617:27
–alpinelinux
cnnvd
CNNVD
ProFTPD security vulnerabilities
21 Jan 202600:00
–cnnvd
cve
CVE
CVE-2021-47865
21 Jan 202617:27
–cve
cvelist
Cvelist
CVE-2021-47865 ProFTPD 1.3.7a - Remote Denial of Service
21 Jan 202617:27
–cvelist
euvd
EUVD
EUVD-2026-3621
21 Jan 202617:27
–euvd
mend
Mend
CVE-2021-47865
21 Jan 202617:27
–mend
nvd
NVD
CVE-2021-47865
21 Jan 202618:16
–nvd
osv_cve
osv_cve
CVE-2021-47865
21 Jan 202618:16
–osv_cve
osv_ubuntu
osv_ubuntu
UBUNTU-CVE-2021-47865
21 Jan 202618:16
–osv_ubuntu
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Ubuntu16.04allproftpd-dfsg0proftpd-dfsg_0_all.deb
Ubuntu18.04allproftpd-dfsg0proftpd-dfsg_0_all.deb
Ubuntu20.04allproftpd-dfsg0proftpd-dfsg_0_all.deb
Ubuntu22.04allproftpd-dfsg0proftpd-dfsg_0_all.deb
Ubuntu24.04allproftpd-dfsg0proftpd-dfsg_0_all.deb
Ubuntu26.04allproftpd-dfsg0proftpd-dfsg_0_all.deb

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10 Jul 2026 06:46Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.17.5
CVSS 48.7
EPSS0.00597
SSVC
14