Home/CVE/A potential vulnerability in the SMI callback function that saves and restore boot script tables used for resuming from
CVE

CVE-2021-3719

A potential vulnerability in the SMI callback function that saves and restore boot script tables used for resuming from

A potential vulnerability in the SMI callback function that saves and restore boot script tables used for resuming from sleep state in some ThinkCentre and ThinkStation models may allow an attacker with local access and elevated privileges to execute arbitrary code.

MEDIUM · CVSS 6.7 EPSS 0.00037
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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
▤

Affected Products & Versions

20
lenovo thinkcentre e93 firmware< fbktdfa
lenovo thinkcentre m600 firmware< m00kt65a
lenovo thinkcentre m700 tiny firmware< fwktb9a
lenovo thinkcentre m73 firmware< fhkt86a
lenovo thinkcentre m73p firmware< fbktdfa
lenovo thinkcentre m800 firmware< fwktb9a
lenovo thinkcentre m818z firmware< m1ekt23a
lenovo thinkcentre m83 firmware< fbktdfa
▣

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 NVD12 Nov 2021 · 10:15 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-67440Vendor Advisory
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