CVE-2026-41095: CWE-416: Use After Free in Microsoft Windows Server 2012 R2
Use after free in Data Deduplication allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability involves a use-after-free condition (CWE-416) in the Data Deduplication component of Windows Server 2012 R2 (version 6.3.9600.0). Exploitation requires local access with some privileges and no user interaction. Successful exploitation could lead to full confidentiality, integrity, and availability impact, allowing privilege escalation. Microsoft has published an official fix to remediate this vulnerability.
Potential Impact
An authorized local attacker could exploit this use-after-free vulnerability to elevate privileges, potentially gaining higher-level access to the system. The impact includes full compromise of confidentiality, integrity, and availability on the affected system. No public exploits are currently known, reducing immediate risk but not eliminating it.
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-2026-41095 to remediate this vulnerability. No additional mitigation steps are indicated by the vendor advisory.
CVE-2026-41095: CWE-416: Use After Free in Microsoft Windows Server 2012 R2
Description
Use after free in Data Deduplication allows an authorized attacker to elevate privileges locally.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a use-after-free condition (CWE-416) in the Data Deduplication component of Windows Server 2012 R2 (version 6.3.9600.0). Exploitation requires local access with some privileges and no user interaction. Successful exploitation could lead to full confidentiality, integrity, and availability impact, allowing privilege escalation. Microsoft has published an official fix to remediate this vulnerability.
Potential Impact
An authorized local attacker could exploit this use-after-free vulnerability to elevate privileges, potentially gaining higher-level access to the system. The impact includes full compromise of confidentiality, integrity, and availability on the affected system. No public exploits are currently known, reducing immediate risk but not eliminating it.
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-2026-41095 to remediate this vulnerability. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-04-16T19:12:36.195Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41095","vendor":"Microsoft"}]
Threat ID: 6a03655bcbff5d861008cb0d
Added to database: 5/12/2026, 5:37:31 PM
Last enriched: 5/12/2026, 6:21:43 PM
Last updated: 5/13/2026, 5:00:01 AM
Views: 2
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