CVE-2026-27913: CWE-20: Improper Input Validation in Microsoft Windows Server 2012
Improper input validation in Windows BitLocker allows an unauthorized attacker to bypass a security feature locally.
AI Analysis
Technical Summary
This vulnerability, tracked as CVE-2026-27913, is caused by improper input validation in the Windows BitLocker component on Windows Server 2012 (version 6.2.9200.0). It enables a local attacker without privileges or user interaction to bypass BitLocker security protections. The CVSS v3.1 base score is 7.7, reflecting high impact on confidentiality and integrity but no impact on availability. Microsoft has released an official patch to remediate this vulnerability as detailed in their security update guide.
Potential Impact
Successful exploitation allows a local attacker to bypass BitLocker security features, potentially exposing sensitive data or compromising system integrity. There is no known exploitation in the wild at this time. The vulnerability does not affect system availability.
Mitigation Recommendations
An official fix is available from Microsoft. Administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-27913 to remediate this vulnerability.
CVE-2026-27913: CWE-20: Improper Input Validation in Microsoft Windows Server 2012
Description
Improper input validation in Windows BitLocker allows an unauthorized attacker to bypass a security feature locally.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, tracked as CVE-2026-27913, is caused by improper input validation in the Windows BitLocker component on Windows Server 2012 (version 6.2.9200.0). It enables a local attacker without privileges or user interaction to bypass BitLocker security protections. The CVSS v3.1 base score is 7.7, reflecting high impact on confidentiality and integrity but no impact on availability. Microsoft has released an official patch to remediate this vulnerability as detailed in their security update guide.
Potential Impact
Successful exploitation allows a local attacker to bypass BitLocker security features, potentially exposing sensitive data or compromising system integrity. There is no known exploitation in the wild at this time. The vulnerability does not affect system availability.
Mitigation Recommendations
An official fix is available from Microsoft. Administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-27913 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-02-24T21:35:49.686Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-27913","vendor":"Microsoft"}]
Threat ID: 69de7a2182d89c981fd6a7c7
Added to database: 4/14/2026, 5:32:17 PM
Last enriched: 4/14/2026, 6:48:24 PM
Last updated: 4/15/2026, 6:05:35 AM
Views: 5
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