Windows Update Service
by Microsoft
CVEs (13)
| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| CVE-2025-59287 | Cri | 0.87 | 9.8 | 1.00 | KEV | Oct 14, 2025 | Deserialization of untrusted data in Windows Server Update Service allows an unauthorized attacker to execute code over a network. | |
| CVE-2021-36948 | Hig | 0.64 | 7.8 | 0.27 | KEV | Aug 12, 2021 | Windows Update Medic Service Elevation of Privilege Vulnerability | |
| CVE-2026-20856 | Hig | 0.53 | 8.1 | 0.01 | Jan 13, 2026 | Improper input validation in Windows Server Update Service allows an unauthorized attacker to execute code over a network. | ||
| CVE-2025-48799 | Hig | 0.51 | 7.8 | 0.01 | Jul 8, 2025 | Improper link resolution before file access ('link following') in Windows Update Service allows an authorized attacker to elevate privileges locally. | ||
| CVE-2023-35317 | Hig | 0.51 | 7.8 | 0.02 | Jul 11, 2023 | Windows Server Update Service (WSUS) Elevation of Privilege Vulnerability | ||
| CVE-2023-32056 | Hig | 0.51 | 7.8 | 0.01 | Jul 11, 2023 | Windows Server Update Service (WSUS) Elevation of Privilege Vulnerability | ||
| CVE-2020-17070 | Hig | 0.51 | 7.8 | 0.01 | Nov 11, 2020 | Windows Update Medic Service Elevation of Privilege Vulnerability | ||
| CVE-2026-26154 | Hig | 0.49 | 7.5 | 0.01 | Apr 14, 2026 | Improper input validation in Windows Server Update Service allows an unauthorized attacker to perform tampering over a network. | ||
| CVE-2026-32224 | Hig | 0.46 | 7.0 | 0.00 | Apr 14, 2026 | Use after free in Windows Server Update Service allows an authorized attacker to elevate privileges locally. | ||
| CVE-2026-26174 | Hig | 0.46 | 7.0 | 0.00 | Apr 14, 2026 | Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Server Update Service allows an authorized attacker to elevate privileges locally. | ||
| CVE-2021-26866 | Hig | 0.46 | 7.1 | 0.01 | Mar 11, 2021 | Windows Update Service Elevation of Privilege Vulnerability | ||
| CVE-2026-50444 | Hig | 0.00 | 8.8 | 0.01 | Jul 14, 2026 | Missing authentication for critical function in Windows Server Update Service allows an authorized attacker to elevate privileges over a network. | ||
| CVE-2026-50328 | Hig | 0.00 | 7.5 | 0.01 | Jul 14, 2026 | Uncaught exception in Windows Server Update Service allows an unauthorized attacker to perform tampering over a network. |
- risk 0.87cvss 9.8epss 1.00
Deserialization of untrusted data in Windows Server Update Service allows an unauthorized attacker to execute code over a network.
- risk 0.64cvss 7.8epss 0.27
Windows Update Medic Service Elevation of Privilege Vulnerability
- risk 0.53cvss 8.1epss 0.01
Improper input validation in Windows Server Update Service allows an unauthorized attacker to execute code over a network.
- risk 0.51cvss 7.8epss 0.01
Improper link resolution before file access ('link following') in Windows Update Service allows an authorized attacker to elevate privileges locally.
- risk 0.51cvss 7.8epss 0.02
Windows Server Update Service (WSUS) Elevation of Privilege Vulnerability
- risk 0.51cvss 7.8epss 0.01
Windows Server Update Service (WSUS) Elevation of Privilege Vulnerability
- risk 0.51cvss 7.8epss 0.01
Windows Update Medic Service Elevation of Privilege Vulnerability
- risk 0.49cvss 7.5epss 0.01
Improper input validation in Windows Server Update Service allows an unauthorized attacker to perform tampering over a network.
- risk 0.46cvss 7.0epss 0.00
Use after free in Windows Server Update Service allows an authorized attacker to elevate privileges locally.
- risk 0.46cvss 7.0epss 0.00
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Server Update Service allows an authorized attacker to elevate privileges locally.
- risk 0.46cvss 7.1epss 0.01
Windows Update Service Elevation of Privilege Vulnerability
- risk 0.00cvss 8.8epss 0.01
Missing authentication for critical function in Windows Server Update Service allows an authorized attacker to elevate privileges over a network.
- risk 0.00cvss 7.5epss 0.01
Uncaught exception in Windows Server Update Service allows an unauthorized attacker to perform tampering over a network.