Home/CVE/A potential vulnerability in the SMI callback function used in the SMBIOS event log driver in some Lenovo Desktop, Think
CVE

CVE-2021-4211

A potential vulnerability in the SMI callback function used in the SMBIOS event log driver in some Lenovo Desktop, Think

A potential vulnerability in the SMI callback function used in the SMBIOS event log driver in some Lenovo Desktop, ThinkStation, and ThinkEdge models may allow an attacker with local access and elevated privileges to execute arbitrary code.

MEDIUM · CVSS 6.7 EPSS 0.0004
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  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
CWE-20Improper Input Validation
▤

Affected Products & Versions

53
lenovo a340-22icb firmwareall versions
lenovo a340-22ick firmwareall versions
lenovo a340-24icb firmwareall versions
lenovo a340-24ick firmwareall versions
lenovo a540-24icb firmwareall versions
lenovo a540-27icb firmwareall versions
lenovo ideacentre 5-14iob6 firmwareall versions
lenovo ideacentre 510s-07icb firmwareall versions
▣

Scoring & Timeline

6.7
MEDIUM · CVSS v3.1 · psirt@lenovo.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD22 Apr 2022 · 09:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://support.lenovo.com/us/en/product_security/LEN-77639Vendor Advisory
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