AUGUST 4, 2026
Live Feed
Back to database
Case File

CVE-2021-33771

HIGH · CVSS 7.8 EPSS 6.25% CISA KEV · Actively Exploited

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-07-14 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

CISA KEV Details

Status: This CVE is listed in CISA's Known Exploited Vulnerabilities catalog.

Ransomware use: Unknown

Added to KEV: 2021-11-03

Required action: Apply updates per vendor instructions.

CVE
CVE-2021-33771
Severity
HIGH
CVSS
7.8
EPSS
6.25%
Windows

Original NVD Description

Windows Kernel Elevation of Privilege Vulnerability