CVE-2025-66203
9.9 · CRITICALOverview
CVE-2025-66203 is a critical-severity vulnerability affecting lemon8866 streamvault. It was published on December 27, 2025 and has a CVSS 3.1 base score of 9.9 (CRITICAL).
This vulnerability has a CVSS 3.1 base score of 9.9, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
StreamVault is a video download integration solution. Prior to version 251126, a Remote Code Execution (RCE) vulnerability exists in the stream-vault application (SpiritApplication). The application allows administrators to configure yt-dlp arguments via the /admin/api/saveConfig endpoint without sufficient validation. These arguments are stored globally and subsequently used in YtDlpUtil.java when constructing the command line to execute yt-dlp. This issue has been patched in version 251126.
Remediation
Check the references section for vendor advisories and patches from lemon8866. Update streamvault to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| lemon8866 | streamvault | >= 0, < 251126 | Affected |
Frequently Asked Questions
What is CVE-2025-66203?
CVE-2025-66203 is a critical-severity vulnerability affecting lemon8866 streamvault. It was published on December 27, 2025 and has a CVSS 3.1 base score of 9.9 (CRITICAL).
How severe is CVE-2025-66203?
This vulnerability has a CVSS 3.1 base score of 9.9, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2025-66203?
Check the references section for vendor advisories and patches from lemon8866. Update streamvault to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2025-66203?
CyberStrike's AI-powered security agents can automatically detect CVE-2025-66203 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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