Is CVE-2026-57223 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-57223 being exploited in the wild.

How severe is CVE-2026-57223?

High severity, with a CVSS score of 7, published 18 September 2026.

Which products and versions are affected?

OISF Suricata before 7.0.17 and 8.0.6.

Is there a fix for CVE-2026-57223?

A patch was published on 2026: Fixed in versions 8.0.6 and 7.0.17 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-57223 attacked?

It is attacked with local access, in a hosted service.

Am I affected by CVE-2026-57223?

Check whether you run OISF Suricata at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-57223: Suricata unquoted service path privilege escalation on Windows

CVE-2026-57223 · Severity: high · CVSS 7 · Published 2026-09-18

Suricata is a network security engine that detects and prevents intrusions on Windows systems. When Suricata is installed to a path containing spaces, a local attacker with write access to an earlier directory component can exploit the unquoted service path to execute arbitrary code with system privileges, leading to complete system compromise.

Technologies: OISF Suricata. Vendors: OISF.

Quick answers

Is CVE-2026-57223 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-57223 being exploited in the wild.
How severe is CVE-2026-57223?: High severity, with a CVSS score of 7, published 18 September 2026.
Which products and versions are affected?: OISF Suricata before 7.0.17 and 8.0.6.
Is there a fix for CVE-2026-57223?: A patch was published on 2026: Fixed in versions 8.0.6 and 7.0.17 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-57223 attacked?: It is attacked with local access, in a hosted service.
Am I affected by CVE-2026-57223?: Check whether you run OISF Suricata at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The Windows service installation logic in src/win32-service.c passes an unquoted ImagePath to CreateServiceA, violating Windows API requirements for paths containing spaces. An attacker with write access to a parent directory of the installation path can place a malicious executable that Windows will execute with LocalSystem privileges. This requires local access and writable directory on the installation path, but results in privilege escalation from a low-privileged account to SYSTEM.

Affected products

OISF Suricata before 7.0.17 and 8.0.6

Timeline

2026-09-18: disclosed
2026: patched: Fixed in versions 8.0.6 and 7.0.17

References

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