CVE-2025-48799

Windows Update Service Elevation of Privilege Vulnerability

CVSS 7.8 HIGHEPSS 1.0%CWE-59

Vexday Risk Score

21Bajo

Decisión SSVC (CISA)

Track

Sin señal de explotación → monitorear

CVSS 7.8EPSS 1.0%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Ciclo de vida

08 jul 2025Publicada en NVD

Recomendación: Monitorear — sin señal de explotación por ahora.

Improper link resolution before file access ('link following') in Windows Update Service allows an authorized attacker to elevate privileges locally.

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

Productos afectados

Microsoft · Windows 10 Version 1607 Microsoft · Windows 10 Version 1809 Microsoft · Windows 10 Version 21H2 Microsoft · Windows 10 Version 22H2 Microsoft · Windows 11 version 22H2 Microsoft · Windows 11 version 22H3 Microsoft · Windows 11 Version 23H2 Microsoft · Windows 11 Version 24H2 Microsoft · Windows Server 2025 Microsoft · Windows Server 2025 (Server Core installation)

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Referencias

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-48799 https://www.vicarius.io/vsociety/posts/cve-2025-48799-detection-script-elevation-of-privilege-vulnerability-in-windows-update-service https://www.vicarius.io/vsociety/posts/cve-2025-48799-mitigation-script-elevation-of-privilege-vulnerability-in-windows-update-service