Vulnerability in Oisf Suricata

CVE-2026-57223

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 7.0.17 and 8.0.6, the Windows service installation and parameter-update logic in src/win32-service.c can pass an unquoted service ImagePath to CreateServiceA. When Suricata is installed below a path containing spaces and an earlier path component is writable by a local low-privileged attacker, Windows can execute an attacker-controlled program as LocalSystem, resulting in local privilege escalation. This issue is fixed in versions 8.0.6 and 7.0.17.

CVSS v3 metric

CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-57223?
CVE-2026-57223 is a high-severity vulnerability in Oisf Suricata, classified under Unquoted Search Path or Element. CVSS score: 7.0/10. Published 2026-09-18.
How severe is CVE-2026-57223?
High severity. CVSS v3 base score is 7.0 out of 10.