Vulnerability · Published Apr 22, 2022 · Assigned by lenovo
CVE-2021-3970
Medium 6.7
In plain English
A medium-severity improper input validation in Notebook BIOS from Lenovo. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 70% of all known vulnerabilities).
Severity (CVSS 3.1)6.7Medium
Exploit odds (30 days)1.3%top 30.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A potential vulnerability in LenovoVariable SMI Handler due to insufficient validation in some Lenovo Notebook models BIOS may allow an attacker with local access and elevated privileges to execute arbitrary code.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Lenovo | Notebook BIOS | various |
Weakness: CWE-20 · Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
References
- https://support.lenovo.com/us/en/product_security/LEN-73440 x_refsource_MISC