CVE-2021-4432: medium-severity vulnerability in PCMan FTP Server
PCMan FTP Server USER Command denial of service
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 1.3%
A vulnerability was found in PCMan FTP Server 2.0.7. It has been classified as problematic. This affects an unknown part of the component USER Command Handler. The manipulation leads to denial of service. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-250719.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Affected products
PCMan · FTP ServerRelated CVEs — PCMan FTP Server
In the same product, most dangerous first.
CVE-2025-4255MEDIUMPCMan FTP Server RMD Command buffer overflowEPSS 2.2%CVE-2025-4871MEDIUMPCMan FTP Server REST Command buffer overflowEPSS 1.7%CVE-2024-0732MEDIUMPCMan FTP Server STOR Command denial of serviceEPSS 1.1%CVE-2024-0731MEDIUMPCMan FTP Server PUT Command denial of serviceEPSS 1.1%CVE-2024-58299CRITICALPCMan FTP Server 2.0 Remote Buffer Overflow via 'pwd' CommandEPSS 0.9%CVE-2025-5331MEDIUMPCMan FTP Server NLST Command buffer overflowEPSS 0.8%