Vulnerabilities CVE-2021-36934

CVE-2021-36934

High

Open

KEV

TLP:CLEAR

Windows Elevation of Privilege Vulnerability

NVD CVE.org

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Description

Microsoft — Windows — If a Volume Shadow Copy (VSS) shadow copy of the system drive is available, users can read the SAM file which would allow any user to escalate privileges to SYSTEM level.

Details

CVSS Score: 7.8
EPSS Score ⓘ: 67.25%

99.2th percentile
CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:T/RC:C
Confidence: 100%
Published: Jul 22, 2021
Last Modified: Aug 10, 2026
CISA KEV
Date Added: Feb 10, 2022
Patch Due: Feb 24, 2022
Required Action: Apply updates per vendor instructions.

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