CVE-2026-109681 — MEDIUM (4.7)

Vulnerability Description

The FTP client trusts the server's PASV response IP:port without validation against the control connection target. A rogue FTP server can specify any IP:port in the 227 Passive Mode response, causing the operator's machine to open a TCP connection to an arbitrary host.

CVSS Score

4.7

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

NONE

Availability

NONE

Related Weaknesses (CWE)

CWE-918

References

https://github.com/rapid7/metasploit-framework/pull/21994

FAQ

What is CVE-2026-109681?

CVE-2026-109681 is a vulnerability with a CVSS score of 4.7 (MEDIUM). The FTP client trusts the server's PASV response IP:port without validation against the control connection target. A rogue FTP server can specify any IP:port in the 227 Passive Mode response, causing ...

How severe is CVE-2026-109681?

CVE-2026-109681 has been rated MEDIUM with a CVSS base score of 4.7/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-109681?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.