Ubuntu Windows Service CVE-2026-57223
MEDIUMSeverity by source
Local vector; low-priv account needed to write intermediate path; no UI; scope changes to LocalSystem with full C/I/A.
Lifecycle Timeline
1DescriptionCVE.org
[windows: unquoted LocalSystem service ImagePath]
AnalysisAI
Unquoted LocalSystem service ImagePath in a Windows component distributed by Ubuntu/Canonical enables local privilege escalation to SYSTEM. When a Windows service ImagePath contains spaces and is not enclosed in quotes, the Windows Service Control Manager attempts to resolve the binary by trying each path segment prefix in order - allowing a lower-privileged local attacker who can write to an intermediate directory to place a malicious executable that runs under LocalSystem context on next service start or system reboot. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires: (1) the affected Ubuntu/Canonical-distributed Windows service is installed on the target host; (2) the attacker has an interactive or remote-shell local user account on that Windows host (PR:L); (3) at least one directory in the unquoted ImagePath segment is writable by the attacker's account - this is the critical gate and depends on installation-time ACL configuration. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Real-world risk is moderate-to-high for systems where the affected Ubuntu/Canonical product is installed on Windows hosts with low-privileged users. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No vendor-released patch version is confirmed in the available input data. … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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