High severity · published Sep 18, 2026
CVE-2026-57223
Suricata windows: unquoted LocalSystem service ImagePath can allow local privilege escalation
7.0
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 4% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SU
suricata · OISF
>= 8.0.0, < 8.0.6; < 7.0.17 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-57223
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-57223
Patch
https://github.com/OISF/suricata/commit/0dad38fff024b4fec9bc8144d8b94dbca39aac2e
Patch
https://github.com/OISF/suricata/commit/2b924d47cc51d0b7760cda3519f2c04a2f65ea38
Patch
https://github.com/OISF/suricata/commit/ac1b3cc1ef3af65ce92da28261d445167eb8234d
Patch
https://github.com/OISF/suricata/pull/15676
Release Notes
https://github.com/OISF/suricata/releases/tag/suricata-7.0.17
Release Notes
https://github.com/OISF/suricata/releases/tag/suricata-8.0.6
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