{"id":"CVE-2026-116844","state":"PUBLISHED","title":"Fclairamb ftpserverlib through 0.32.4 Cleartext FTPES Data Transfer via PROT P","description":"Fclairamb ftpserverlib through 0.32.4 contains a cleartext transmission vulnerability because TransferOpen checks only the transferTLS flag set by PROT, not whether the prepared data connection uses TLS. When a client sends PROT P after PASV or PORT, file contents and directory listings cross the network unencrypted, even with mandatory encryption, letting on-path attackers read or modify them.","publishedAt":"2026-10-27T00:34:02.373Z","updatedAt":"2026-10-29T10:52:21.022Z","severity":{"score":6.3,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["fclairamb ftpserverlib","Syncplify, Inc. 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