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Vulnerability DatabaseCVE-2011-2523

CVE-2011-2523: 
vsftpd vulnerability analysis and mitigation

vsftpd 2.3.4 downloaded between 20110630 and 20110703 contains a backdoor which opens a shell on port 6200/tcp.

Source: NVD

Related vsftpd vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2011-2523CRITICAL9.8
  • vsftpd logovsftpd
  • vsftpd
NoYesNov 27, 2019
CVE-2021-30047HIGH7.5
  • vsftpd logovsftpd
  • vsftpd
NoNoAug 22, 2023
CVE-2021-3618HIGH7.4
  • Go logoGo
  • nginx:1.18::nginx-mod-stream
NoYesMar 23, 2022
CVE-2025-14242MEDIUM6.5
  • vsftpd logovsftpd
  • vsftpd
NoYesJan 14, 2026
CVE-2015-1419MEDIUM5
  • vsftpd logovsftpd
  • vsftpd
NoYesJan 28, 2015

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