CVE-2025-21194
Published: 11 February 2025
Summary
CVE-2025-21194 is a high-severity Improper Input Validation (CWE-20) vulnerability in Microsoft Surface Hub 2S Firmware. Its CVSS base score is 7.1 (High).
Operationally, ranked at the 40.9th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Requires timely identification, reporting, and patching of the specific security feature bypass flaw in Microsoft Surface devices to prevent exploitation.
Directly counters the improper input validation (CWE-20) root cause by enforcing input validation at system points to block malicious adjacent network inputs.
Implements restrictions, monitoring, and protections for mobile devices like Surface to mitigate unauthorized access and security feature bypasses from adjacent networks.
MITRE ATT&CK Enterprise TechniquesAI
Insufficient information to map techniques.NVD Description
Microsoft Surface Security Feature Bypass Vulnerability
Deeper analysisAI
CVE-2025-21194 is a security feature bypass vulnerability affecting Microsoft Surface devices. Published on 2025-02-11, it carries a CVSS v3.1 base score of 7.1 (High), with vector AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H. The issue is linked to CWE-20 (Improper Input Validation) and lacks additional CWE details from NVD.
An attacker on an adjacent network can exploit this vulnerability with no privileges required but must overcome high attack complexity and rely on user interaction. Successful exploitation enables high-impact consequences, including unauthorized access to confidential data, modification of system integrity, and disruption of availability, effectively bypassing security features on the affected Microsoft Surface component.
For mitigation details, security practitioners should refer to the official Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21194.
Details
- CWE(s)