What’s Vulnerable › Vulnerabilities

CVE-2026-57223: Suricata windows: unquoted LocalSystem service ImagePath can allow local privilege escalation

• Severity: high (CVSS 7.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-18 · updated 2026-09-29
• Weakness: CWE-428

Description

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.

Affected products

• OISF suricata: before 7.0.17; from 8.0.0 before 8.0.6 — fixed in 7.0.17, 8.0.6

How to fix

Upgrade to a fixed version: OISF suricata 7.0.17, 8.0.6. Check the vendor advisory for mitigations.

References

• https://github.com/OISF/suricata/commit/0dad38fff024b4fec9bc8144d8b94dbca39aac2e
• https://github.com/OISF/suricata/commit/2b924d47cc51d0b7760cda3519f2c04a2f65ea38
• https://github.com/OISF/suricata/commit/ac1b3cc1ef3af65ce92da28261d445167eb8234d
• https://github.com/OISF/suricata/pull/15676
• https://github.com/OISF/suricata/releases/tag/suricata-7.0.17
• https://github.com/OISF/suricata/releases/tag/suricata-8.0.6
• https://github.com/OISF/suricata/security/advisories/GHSA-jh8w-wf3f-58jp
• https://redmine.openinfosecfoundation.org/issues/8600

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