Vulnerabilities CVE-2021-34527

CVE-2021-34527

High

Open

KEV

TLP:CLEAR

Windows Print Spooler Remote Code Execution Vulnerability

NVD CVE.org

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Description

Microsoft — Windows — Microsoft Windows Print Spooler contains an unspecified vulnerability due to the Windows Print Spooler service improperly performing privileged file operations. Successful exploitation allows an attacker to perform remote code execution with SYSTEM privileges. The vulnerability is also known under the moniker of PrintNightmare.

Details

CVSS Score: 8.8
EPSS Score ⓘ: 99.76%

100th percentile
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C
Confidence: 100%
Published: Jul 2, 2021
Last Modified: Aug 10, 2026
CISA KEV
Date Added: Nov 3, 2021
Patch Due: May 3, 2022
Required Action: Apply updates per vendor instructions.

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