CVE-2026-42829: CWE-284: Improper Access Control in Microsoft Windows 11 Version 24H2
Improper access control in Windows Administrator Protection allows an authorized attacker to bypass a security feature locally.
AI Analysis
Technical Summary
CVE-2026-42829 is an improper access control vulnerability (CWE-284) affecting Windows Administrator Protection in Microsoft Windows 11 Version 24H2 (build 10.0.26100.0). It enables an authorized local attacker with low privileges to bypass security controls without user interaction, resulting in high impact on confidentiality, integrity, and availability. The vulnerability has a CVSS v3.1 base score of 7.8, indicating high severity. Microsoft has published an official fix to remediate this issue.
Potential Impact
An authorized local attacker can bypass Windows Administrator Protection security features, which may lead to full compromise of system confidentiality, integrity, and availability. This could allow unauthorized access or modification of sensitive system components or data.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. Users and administrators should apply the security update provided by Microsoft for Windows 11 Version 24H2 (build 10.0.26100.0) as soon as possible to remediate this issue. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42829 for detailed patch information and deployment guidance.
CVE-2026-42829: CWE-284: Improper Access Control in Microsoft Windows 11 Version 24H2
Description
Improper access control in Windows Administrator Protection allows an authorized attacker to bypass a security feature locally.
CVSS v3.1
Score 7.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-42829 is an improper access control vulnerability (CWE-284) affecting Windows Administrator Protection in Microsoft Windows 11 Version 24H2 (build 10.0.26100.0). It enables an authorized local attacker with low privileges to bypass security controls without user interaction, resulting in high impact on confidentiality, integrity, and availability. The vulnerability has a CVSS v3.1 base score of 7.8, indicating high severity. Microsoft has published an official fix to remediate this issue.
Potential Impact
An authorized local attacker can bypass Windows Administrator Protection security features, which may lead to full compromise of system confidentiality, integrity, and availability. This could allow unauthorized access or modification of sensitive system components or data.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. Users and administrators should apply the security update provided by Microsoft for Windows 11 Version 24H2 (build 10.0.26100.0) as soon as possible to remediate this issue. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42829 for detailed patch information and deployment guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-04-30T14:51:12.703Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42829","vendor":"Microsoft"}]
Threat ID: 6a284cbb8dd33fbd85664548
Added to database: 06/09/2026, 17:26:19 UTC
Last enriched: 07/29/2026, 21:46:20 UTC
Last updated: 07/31/2026, 21:26:44 UTC
Views: 57
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