CVE-2026-25171: CWE-416: Use After Free in Microsoft Windows 10 Version 1607
Use after free in Windows Authentication Methods allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-25171) involves a use-after-free condition in Windows Authentication Methods on Windows 10 Version 1607 (build 10.0.14393.0). Exploitation requires local access with low privileges but no user interaction. Successful exploitation can lead to full confidentiality, integrity, and availability impact by elevating privileges locally. Microsoft has published an official fix for this vulnerability.
Potential Impact
An authorized local attacker can exploit this use-after-free vulnerability to elevate their privileges on the affected system. This can result in complete compromise of confidentiality, integrity, and availability of the system. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official patch is available from Microsoft. Users and administrators should apply the update provided in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-25171 to remediate this vulnerability.
CVE-2026-25171: CWE-416: Use After Free in Microsoft Windows 10 Version 1607
Description
Use after free in Windows Authentication Methods allows an authorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.0high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-25171) involves a use-after-free condition in Windows Authentication Methods on Windows 10 Version 1607 (build 10.0.14393.0). Exploitation requires local access with low privileges but no user interaction. Successful exploitation can lead to full confidentiality, integrity, and availability impact by elevating privileges locally. Microsoft has published an official fix for this vulnerability.
Potential Impact
An authorized local attacker can exploit this use-after-free vulnerability to elevate their privileges on the affected system. This can result in complete compromise of confidentiality, integrity, and availability of the system. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official patch is available from Microsoft. Users and administrators should apply the update provided in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-25171 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-01-29T18:36:49.695Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-25171","vendor":"Microsoft"}]
Threat ID: 69b0562cea502d3aa87d69f1
Added to database: 03/10/2026, 17:34:36 UTC
Last enriched: 06/19/2026, 20:27:56 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 176
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