← Vulnerability feed

Vulnerability record · CVE-2026-42829 · published 9 June 2026

CVE-2026-42829: Microsoft windows 11 24h2 improper access control vulnerability

Microsoft · Windows 11 24h2

Improper access control in Windows Administrator Protection allows an authorized attacker to bypass a security feature locally.

7.8 CVSS 3.1 High EPSS 0.30% · top 79.9% CWE-284 · Improper access control
7.8CVSS 3.1 base score
0.30%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
1References
23 Jul 2026Last modified by NVD

Description

Improper access control in Windows Administrator Protection allows an authorized attacker to bypass a security feature locally.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42829 Vendor Advisory

Track CVE-2026-42829 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2026-33824Double free in Windows IKE Extension enables remote code executionA double free flaw (CWE-415) exists in the Windows IKE Extension, reachable over the network by an unauthenticated attacker. Successful exploitation …KEVEPSS 1.6%analysed8.8CVE-2026-21510Windows Shell protection mechanism failure allows security feature bypassWindows Shell contains a protection mechanism failure (CWE-693) that lets an unauthorized attacker bypass a security feature over a network. The flaw…KEVEPSS 24%analysed8.8CVE-2026-21513Microsoft MSHTML security feature bypass on WindowsCVE-2026-21513 is a protection mechanism failure (CWE-693) in the Microsoft MSHTML Framework that lets an unauthorized attacker bypass a security fea…KEVEPSS 16%analysed8.8CVE-2025-33073Windows SMB improper access control allows privilege elevationWindows SMB contains an improper access control flaw (CWE-284) that lets an authorized attacker elevate privileges over the network. Microsoft rates …KEVEPSS 83%analysed8.8CVE-2025-33053Microsoft Windows WebDAV Internet Shortcut File Path Control RCEWindows Internet Shortcut (.url) files allow external control of a file name or path, which an unauthorized attacker can abuse to execute code over a…KEVEPSS 87%analysed8.8CVE-2024-49039Windows Task Scheduler elevation of privilege via improper authenticationCVE-2024-49039 is an elevation of privilege flaw in the Windows Task Scheduler, classified as improper authentication (CWE-287). A local attacker wit…KEVEPSS 14%analysed8.8CVE-2024-43461Windows MSHTML Platform spoofing flaw enables code executionCVE-2024-43461 is a spoofing vulnerability in the Windows MSHTML platform, the legacy rendering engine still reachable through Windows components. Th…KEVEPSS 54%analysed8.1CVE-2024-43573Windows MSHTML platform spoofing flaw exploited in the wildCVE-2024-43573 is a spoofing vulnerability in the Windows MSHTML platform, the legacy rendering engine still reachable through Windows components. It…KEVEPSS 46%analysed

Source: NIST National Vulnerability Database (record CVE-2026-42829), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.