AUGUST 4, 2026
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Case File

CVE-2022-4020

HIGH · CVSS 8.1 EPSS 0.24%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-11-28 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 8.1. See the original NVD description below for full technical details.

CVE
CVE-2022-4020
Severity
HIGH
CVSS
8.1
EPSS
0.24%

Original NVD Description

Vulnerability in the HQSwSmiDxe DXE driver on some consumer Acer Notebook devices may allow an attacker with elevated privileges to modify UEFI Secure Boot settings by modifying an NVRAM variable.

Related CVEs

Other vulnerabilities affecting the same vendor(s)