CVE-2025-21213: CWE-284: Improper Access Control in Microsoft Windows 10 Version 1507
Secure Boot Security Feature Bypass Vulnerability
AI Analysis
Technical Summary
This vulnerability, identified as CVE-2025-21213 and classified under CWE-284 (Improper Access Control), affects Microsoft Windows 10 Version 1507 (build 10.0.10240.0). It allows bypassing the Secure Boot security feature, potentially compromising system integrity. The CVSS v3.1 base score is 4.6, indicating medium severity, with an attack vector requiring physical presence (AV:P), low attack complexity, no privileges or user interaction needed, and high confidentiality impact. Microsoft has published an official fix for this vulnerability.
Potential Impact
The vulnerability allows an attacker with physical access to bypass Secure Boot protections, potentially enabling unauthorized code to run during system startup. While confidentiality impact is high, integrity and availability impacts are not affected. No known exploits are reported in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21213 to remediate this vulnerability.
CVE-2025-21213: CWE-284: Improper Access Control in Microsoft Windows 10 Version 1507
Description
Secure Boot Security Feature Bypass Vulnerability
CVSS v3.1
Score 4.6medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, identified as CVE-2025-21213 and classified under CWE-284 (Improper Access Control), affects Microsoft Windows 10 Version 1507 (build 10.0.10240.0). It allows bypassing the Secure Boot security feature, potentially compromising system integrity. The CVSS v3.1 base score is 4.6, indicating medium severity, with an attack vector requiring physical presence (AV:P), low attack complexity, no privileges or user interaction needed, and high confidentiality impact. Microsoft has published an official fix for this vulnerability.
Potential Impact
The vulnerability allows an attacker with physical access to bypass Secure Boot protections, potentially enabling unauthorized code to run during system startup. While confidentiality impact is high, integrity and availability impacts are not affected. No known exploits are reported in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21213 to remediate this vulnerability.
Technical Details
- Data Version
- 5.1
- Assigner Short Name
- microsoft
- Date Reserved
- 2024-12-05T21:43:30.770Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21213","vendor":"Microsoft"}]
Threat ID: 68c0bd4c9ed239a66badea5b
Added to database: 09/09/2025, 23:50:36 UTC
Last enriched: 06/10/2026, 09:42:19 UTC
Last updated: 09/10/2026, 19:36:49 UTC
Views: 122
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