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 (CVE-2026-27913) is caused by improper input validation in the Windows BitLocker component of Microsoft Windows Server 2012 (version 6.2.9200.0). It enables a local attacker without privileges or user interaction to bypass a security feature. The CVSS v3.1 base score is 7.7, reflecting high impact on confidentiality and integrity. Microsoft has released an official fix to remediate the vulnerability, as detailed in their security advisory.
Potential Impact
Successful exploitation allows a local attacker to bypass BitLocker security features, potentially exposing sensitive data protected by BitLocker encryption. The vulnerability impacts confidentiality and integrity but does not affect availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators of Windows Server 2012 (version 6.2.9200.0) 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.
CVSS v3.1
Score 7.7high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-27913) is caused by improper input validation in the Windows BitLocker component of Microsoft Windows Server 2012 (version 6.2.9200.0). It enables a local attacker without privileges or user interaction to bypass a security feature. The CVSS v3.1 base score is 7.7, reflecting high impact on confidentiality and integrity. Microsoft has released an official fix to remediate the vulnerability, as detailed in their security advisory.
Potential Impact
Successful exploitation allows a local attacker to bypass BitLocker security features, potentially exposing sensitive data protected by BitLocker encryption. The vulnerability impacts confidentiality and integrity but does not affect availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators of Windows Server 2012 (version 6.2.9200.0) 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: 04/14/2026, 17:32:17 UTC
Last enriched: 06/19/2026, 17:02:08 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 133
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