CVE-2026-116844 Fclairamb ftpserverlib through 0.32.4 Cleartext FTPES Data Transfer via PROT P

Medium 6.3 Published 27 Oct 2026 Updated 29 Oct 2026

Exploited in the wild: Not known
Fix: None listed

What is CVE-2026-116844?

CVE-2026-116844 is a medium-severity vulnerability in Syncplify, Inc. Syncplify Server!, published on 27 Oct 2026.

Official 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.

Weakness: CWE-319

Which versions are affected by CVE-2026-116844?

How do I fix CVE-2026-116844?

No fix has been published for CVE-2026-116844 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-116844 being exploited?

There is no known exploitation of CVE-2026-116844 in the wild and no public exploit code.

Sources

Also known as GHSA-j2x3-vcc8-r98q.