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Vulnerability · Published Sep 18, 2026 · Assigned by GitHub_M

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

High 7.0

In plain English

A high-severity security flaw in suricata from OISF. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 5% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.0High
Exploit odds (30 days)0.2%top 95.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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 packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:13suricatano fix listedDEBIAN-CVE-2026-57223
Debian:14suricata1:8.0.6-1DEBIAN-CVE-2026-57223
Ubuntu:22.04:LTSsuricatano fix listedUBUNTU-CVE-2026-57223
Ubuntu:24.04:LTSsuricatano fix listedUBUNTU-CVE-2026-57223
Ubuntu:26.04:LTSsuricatano fix listedUBUNTU-CVE-2026-57223

Affected products (as reported)

VendorProductVersions
OISF suricata >= 8.0.0, < 8.0.6< 7.0.17

Weakness: CWE-428 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

References