CVE-2026-105009
HighCVSS 7.5Summary
Incorrect default permissions in Windows Server Update Service allows an authorized attacker to elevate privileges locally.
Risk Assessment
An authorized user could gain elevated privileges on the system, potentially leading to full system compromise.
Recommendation
Install the latest security updates for Windows Server Update Service.
Other vulnerabilities in Windows Server Update Service
See all- CVE-2026-83499High
Insufficient granularity of access control in Windows Server Update Service allows an authorized attacker to elevate privileges locally.
- CVE-2026-81969High
Insufficient granularity of access control in Windows Server Update Service allows an authorized attacker to elevate privileges locally.
- CVE-2025-59287CriticalActively exploited
Deserialization of untrusted data in Windows Server Update Service allows an unauthorized attacker to execute code over a network.
- CVE-2026-50444High
Missing authentication for a critical function in Windows Server Update Service (WSUS) allows an authorized attacker to elevate privileges over a network.
- CVE-2026-50328High
An unhandled exception in Windows Server Update Service (WSUS) allows an unauthorized attacker to perform tampering over a network. This vulnerability could compromise the integrity of updates.
- CVE-2026-20856High
Improper input validation in Windows Server Update Service allows an unauthorized attacker to execute code over a network.
Original NVD description (English source)
Incorrect default permissions in Windows Server Update Service allows an authorized attacker to elevate privileges locally.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS