CVE-2025-54081

SunshineService Has Unquoted Service Path That Allows Local SYSTEM Code Execution

HIGH
7
CVSS Score
Published: September 23, 2025 at 06:18 PM UTC
Updated: October 11, 2026 at 08:10 PM UTC
1 product affected across 1 vendorSunshine· also runs on 1 platform

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Severity
HIGH7
Exploit prediction
EPSS 0.2%
SSVC
PoC

Description

Sunshine is a self-hosted game stream host for Moonlight. Prior to version 2025.923.33222, the Windows service SunshineService is installed with an unquoted executable path. If Sunshine is installed in a directory whose name includes a space, the Service Control Manager (SCM) interprets the path incrementally and may execute a malicious binary placed earlier in the search string. This issue has been patched in version 2025.923.33222.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

0.10.0 ≤ v < 2025.923.33222
Affected range stops below 2025.923.33222, so it looks safe — our inference, not a vendor statement
microsoft-windows (environment)

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (3)

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-428

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