CVE-2026-63450 (GCVE-0-2026-63450)

Vulnerability from cvelistv5 – Published: 2026-09-18 20:13 – Updated: 2026-09-23 19:45
VLAI
Title
Suricata ftp: RETR/STOR before PORT/PASV can disable further IDS app-layer detection
Summary
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.
Severity
3.7 (Low)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 19:45 UTC
CWE
  • CWE-755 - Improper Handling of Exceptional Conditions
Assigner
References
Impacted products
Vendor Product Version CPE status
OISF suricata Affected: < 8.0.6
guessed Create a notification for this product.
Show details on NVD website
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