CVE-2022-4020

Published: Nov 28, 2022

Modified: Apr 14, 2025

PUBLISHED

CVSS v3.1

8.1

HIGH

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.

Vendor	Product	Versions
Acer	Aspire A315-22	affected `1.04 - < 1.11`
Acer	Aspire A115-21	affected `1.04 - < 1.11`
Acer	Aspire A315-22G	affected `1.04 - < 1.11`
Acer	Extensa EX215-21	affected `1.04 - < 1.11`
Acer	Extensa EX215-21G	affected `1.04 - < 1.11`

Weaknesses (CWE)

CWE-276

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:H/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

High

Availability

High

References

https://community.acer.com/en/kb/articles/15520-security-vulnerability-regarding-vulnerability-that-may-allow-changes-to-secure-boot-settings

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CVE-2022-4020

Description

Affected Products

Weaknesses (CWE)

CVSS v3.1 Details

References