CVE-2026-63450

[CVE catalog]

Severity

Low · CVSS 3.7CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

Published

Sep 18, 2026, 8:13:42 PM UTC

Updated

Sep 18, 2026, 9:17:04 PM UTC

Source

[NVD] · [CVE record]

EPSS

0.25% · Oct 25, 2026

A flaw was found in Suricata, a network Intrusion Detection System (IDS) and Intrusion Prevention System (IPS). A remote attacker can exploit a vulnerability in the FTP parser where sending a `RETR` or `STOR` command before `PORT` or `PASV` negotiation is incorrectly treated as a fatal error. This error disables further FTP application-layer parsing for the duration of the TCP connection, allowing subsequent commands to bypass detection rules and logging in IDS mode, or causing the flow to be dropped in IPS mode. This can lead to a security bypass, enabling attackers to evade security monitoring. Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references. The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.