Vulnerability · Published Nov 28, 2022 · Assigned by ESET
CVE-2022-4020Acer Aspire BIOS vulnerability
High 8.1
In plain English
A high-severity incorrect default permissions in Aspire A115-21 from Acer. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities).
Severity (CVSS 3.1)8.1High
Exploit odds (30 days)0.2%top 83.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Acer | Aspire A315-22 | 1.04 – before 1.11 |
| Acer | Aspire A115-21 | 1.04 – before 1.11 |
| Acer | Aspire A315-22G | 1.04 – before 1.11 |
| Acer | Extensa EX215-21 | 1.04 – before 1.11 |
| Acer | Extensa EX215-21G | 1.04 – before 1.11 |
Weakness: CWE-276 · Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:H/A:H