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VulnerabilityPublished

CVE-2025-54081: LizardByte Sunshine · Unquoted Search Path or Element

Affects LizardByte SunshineSource CVE Database V5

0

Not known to be exploited · CVSS 6.7 Medium : upgrade to 2025.923.33222 when convenient.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 3.1 base score
6.7Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 14% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 2025.923.33222
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 23 Sep 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade LizardByte Sunshine to 2025.923.33222.

Affected software

ProductAffectedFixed in
LizardByte SunshineAffected
  • <2025.923.33222
Fixed in
  • 2025.923.33222

AI-suggested

To mitigate this vulnerability, European organizations should: 1) Immediately update Sunshine to version 2025.923.33222 or later, where the unquoted path issue is fixed. 2) Audit existing installations to verify the installation path does not contain spaces or ensure the executable path is properly quoted in the service configuration. 3) Use Windows tools such as 'sc qc SunshineService' to check the service executable path and correct it if unquoted. 4) Restrict write permissions on directories in the executable path to prevent unauthorized users from placing malicious binaries. 5) Employ application whitelisting and endpoint protection solutions to detect and block unauthorized executable files. 6) Educate users about the risks of executing unknown binaries and enforce least privilege principles to limit the ability of attackers to exploit local vulnerabilities. 7) Monitor logs for unusual service behavior or unexpected process executions related to SunshineService. These steps go beyond generic patching by addressing the root cause and reducing the attack surface related to service path misconfigurations.

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.

References

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