CVE-2025-66203
9.9 · CRITICALStreamVault is a video download integration solution.
Overview
CVE-2025-66203 is a critical-severity vulnerability. 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, patches, and mitigation guidance. 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 CyberStrike helps
Reason, not just scan
It reasons through your app's logic the way a human pentester would, so it finds flaws signature scanners miss.
Learn moreVerified findings
Every finding is proven exploitable before you see it, which cuts the false positives that bury real risk.
Learn moreAI-driven DAST and SAST
Probe running apps and read source from one engine, so issues are caught before and after they ship.
Learn moreOpen source
Read exactly how it tests and what it reports. CyberStrike is open source and in early access.
View the repo
Frequently asked questions
What is CVE-2025-66203?
CVE-2025-66203 is a critical-severity vulnerability. 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, patches, and mitigation guidance. 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 is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-66203 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.
Related CRITICAL CVEs from 2025
View all- 10.0CVE-2024-56829
Huang Yaoshi Pharmaceutical Management Software through 16.0 allows arbitrary file upload via a .asp
View details - 10.0CVE-2024-43243
Unrestricted Upload of File with Dangerous Type vulnerability in themeglow JobBoard Job listing job-
View details - 10.0CVE-2024-50603
An issue was discovered in Aviatrix Controller before 7.1.4191 and 7.2.x before 7.2.4996. Due to the
View details - 10.0CVE-2025-22504
Unrestricted Upload of File with Dangerous Type vulnerability in jumpdemand 4ECPS Web Forms 4ecps-we
View details - 10.0CVE-2024-34166
An os command injection vulnerability exists in the touchlist_sync.cgi touchlistsync() functionality
View details - 10.0CVE-2024-36258
A stack-based buffer overflow vulnerability exists in the touchlist_sync.cgi touchlistsync() functio
View details - 10.0CVE-2024-36290
A buffer overflow vulnerability exists in the login.cgi Goto_chidx() functionality of Wavlink AC3000
View details - 10.0CVE-2024-39608
A firmware update vulnerability exists in the login.cgi functionality of Wavlink AC3000 M33A8.V5030.
View details - 10.0CVE-2024-39754
A static login vulnerability exists in the wctrls functionality of Wavlink AC3000 M33A8.V5030.210505
View details - 10.0CVE-2024-39759
Multiple OS command injection vulnerabilities exist in the login.cgi set_sys_init() functionality of
View details - 10.0CVE-2024-39760
Multiple OS command injection vulnerabilities exist in the login.cgi set_sys_init() functionality of
View details - 10.0CVE-2024-39761
Multiple OS command injection vulnerabilities exist in the login.cgi set_sys_init() functionality of
View details