CVE-2026-25187: CWE-59: Improper Link Resolution Before File Access ('Link Following') in Microsoft Windows 10 Version 1607
Improper link resolution before file access ('link following') in Winlogon allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability (CWE-59) in Windows 10 Version 1607 occurs due to improper link resolution before file access within the Winlogon process. An authorized local attacker can leverage this flaw to elevate their privileges on the affected system. The CVSS v3.1 base score is 7.8, indicating high severity, with impact on confidentiality, integrity, and availability. Microsoft has published an official fix to remediate the vulnerability.
Potential Impact
Successful exploitation allows a local attacker with some privileges to escalate their privileges to a higher level, potentially gaining full control over the affected system. The vulnerability impacts confidentiality, integrity, and availability of the system.
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-2026-25187 to remediate this vulnerability.
CVE-2026-25187: CWE-59: Improper Link Resolution Before File Access ('Link Following') in Microsoft Windows 10 Version 1607
Description
Improper link resolution before file access ('link following') in Winlogon allows an authorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-59) in Windows 10 Version 1607 occurs due to improper link resolution before file access within the Winlogon process. An authorized local attacker can leverage this flaw to elevate their privileges on the affected system. The CVSS v3.1 base score is 7.8, indicating high severity, with impact on confidentiality, integrity, and availability. Microsoft has published an official fix to remediate the vulnerability.
Potential Impact
Successful exploitation allows a local attacker with some privileges to escalate their privileges to a higher level, potentially gaining full control over the affected system. The vulnerability impacts confidentiality, integrity, and availability of the system.
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-2026-25187 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-01-29T18:36:49.696Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-25187","vendor":"Microsoft"}]
Threat ID: 69b0562fea502d3aa87d6ad9
Added to database: 03/10/2026, 17:34:39 UTC
Last enriched: 06/19/2026, 20:29:11 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 443
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