CVE-2026-42976

HighCVSS 7.8/10Last modified Aug 16, 2026

Description

Missing authentication for critical function in Windows RPC API allows an authorized attacker to elevate privileges locally.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Aug 11, 2026
Last modified
Aug 16, 2026
NVD status
Analyzed

Related CVEs from 2026

CVE-2026-429777.8Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorizCVE-2026-429787.8Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorizCVE-2026-429797.8Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorizCVE-2026-42984.3The DSGVO All in one for WP plugin for WordPress is vulnerable to Missing Authorization in all versions up to and including 4.9. This is dueCVE-2026-429807.8Integer underflow (wrap or wraparound) in Windows NT OS Kernel allows an authorized attacker to elevate privileges locally.CVE-2026-429818.1Integer underflow (wrap or wraparound) in Windows Performance Monitor allows an unauthorized attacker to execute code over a network.CVE-2026-429827.8Improper validation of consistency within input in Windows Secure Kernel Mode allows an authorized attacker to elevate privileges locally.CVE-2026-429837.8Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.CVE-2026-429847.0Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.CVE-2026-429858.8Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.CVE-2026-429867.8Use after free in Microsoft Graphics Component allows an authorized attacker to elevate privileges locally.CVE-2026-429878.1Use after free in Windows Deployment Services allows an unauthorized attacker to execute code over a network.
CVE-2026-42976: High severity, CVSS 7.8 | Vulnix