CVE-2026-63450: Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 8.0.6, the FTP parser in…

PriorityP428medium5.3CVSS 3.1

AVNACLPRNUINSUCNILAN

EPSS

0.25%

15.2th percentile

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 8.0.6, the FTP parser in src/app-layer-ftp.c treats a RETR or STOR command sent before PORT or PASV negotiation as a fatal application-layer error instead of a recoverable protocol event. The fatal state disables FTP application-layer parsing for the remainder of the TCP flow, so later commands can evade parser-dependent rules and logging; IPS mode instead drops the flow. This issue is fixed in version 8.0.6.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
oisf	suricata	< 8.0.6	8.0.6

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