CVE-2021-4212

CWE-20 — Improper Input Validation3 documents3 sources
Severity
6.7MEDIUM
EPSS
0.0%
top 88.94%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Lenovo Bios
Timeline
PublishedApr 22
Latest updateApr 23

Description

A potential vulnerability in the SMI callback function used in the Legacy BIOS mode driver in some Lenovo Notebook models may allow an attacker with local access and elevated privileges to execute arbitrary code.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HExploitability: 0.8 | Impact: 5.9

Affected Packages1 packages

▶CVEListV5lenovo/biosvarious

Patches

Patch: support.lenovo.com ↗Patch: support.lenovo.com ↗

🔴Vulnerability Details

2
GHSA
GHSA-937r-586h-vgqf: A potential vulnerability in the SMI callback function used in the Legacy BIOS mode driver in some Lenovo Notebook models may allow an attacker with l↗2022-04-23
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CVEList
CVE-2021-4212: A potential vulnerability in the SMI callback function used in the Legacy BIOS mode driver in some Lenovo Notebook models may allow an attacker with l↗2022-04-22
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CVE-2021-4212 (MEDIUM CVSS 6.7) | A potential vulnerability in the SM | cvebase.io