CVE-2022-4020

Acer Aspire BIOS vulnerability

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.

Category

8.1
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.06%
Vendor Advisory acer.com
Affected: Acer Aspire A315-22
Affected: Acer Aspire A115-21
Affected: Acer Aspire A315-22G
Affected: Acer Extensa EX215-21
Affected: Acer Extensa EX215-21G
Published at:
Updated at:

References

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

Frequently Asked Questions

What is the severity of CVE-2022-4020?
CVE-2022-4020 has been scored as a high severity vulnerability.
How to fix CVE-2022-4020?
To fix CVE-2022-4020, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-4020 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-4020 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-4020?
CVE-2022-4020 affects Acer Aspire A315-22, Acer Aspire A115-21, Acer Aspire A315-22G, Acer Extensa EX215-21, Acer Extensa EX215-21G.
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