CVE-2026-63450
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine.
Does this matter?
Lower severity and a low EPSS score (0.25%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- EPSS
- 0.25% probability · 16th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-755
- Affected
- oisf/suricata
- Source
- security-advisories@github.com
EPSS 0.2% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/OISF/suricata/commit/52490b8c26909772801afed98df63a6d62f3af18Patch
- https://github.com/OISF/suricata/commit/feb0ff91159cea474a983adf92e4b56fb16e4ffcPatch
- https://github.com/OISF/suricata/pull/15704Patch
- https://github.com/OISF/suricata/releases/tag/suricata-8.0.6Release Notes
- https://github.com/OISF/suricata/security/advisories/GHSA-56wx-7hqh-wfgrVendor Advisory
- https://redmine.openinfosecfoundation.org/issues/8659Permissions Required
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.