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CVE-2021-36948

Windows Update Medic Service Elevation of Privilege Vulnerability

CVSS 7.8 HIGHEPSS 19.9%● KEV
Vexday Risk Score
56Attention
SSVC decision (CISA)
Act
Exploitation + impact → act immediately
CVSS 7.8EPSS 19.9%KEV simPoC Nuclei Metasploit Patch
Lifecycle
12 Aug 2021Published on NVD
03 Nov 2021Active exploitation (CISA KEV)
Recommendation: Patch as soon as possible — active exploitation confirmed.
In short

A flaw in Windows Update Medic Service allows an attacker with local access to run commands with higher privileges than they should have. This can be exploited to gain administrative control over the system.

Technical detail

Local privilege escalation vulnerability in Windows Update Medic Service allows an authenticated user to execute arbitrary code with SYSTEM privileges. The vulnerability requires local access to the target system and can be triggered through the service's normal operation or exposed interfaces.

Summary generated and translated by AI from the official description.
Windows Update Medic Service Elevation of Privilege Vulnerability
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C

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