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CVE-2021-3786

Published: Nov 12, 2021Updated: Nov 21, 2024 Sources: CVE List NVDCWE-20
NVD MITRE
4.4CVSSMEDIUM
EPSS Score
0.2%
Top 87.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

A potential vulnerability in the SMI callback function used in CSME configuration of some Lenovo Notebook and ThinkPad systems could be used to leak out data out of the SMRAM range.

CVSS Vector Breakdown

AV:LAC:LPR:HUI:NS:UC:NI:NA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-20NVD-CWE-noinfo

Affected Products

thinkpad x380 yoga firmwarelenovoHardware Firmware
thinkpad x1 fold gen 1 firmwarelenovoHardware Firmware
thinkpad yoga 260 firmwarelenovoHardware Firmware
thinkpad yoga 11e 3rd gen firmwarelenovoHardware Firmware
thinkpad yoga 15 firmwarelenovoHardware Firmware
lenovocommercialCNHardware Firmwareaka lenovo group
and 129 more affected products View all →

Exploitability

Official Patch Available

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://support.lenovo.com/us/en/product_security/LEN-67440
support.lenovo.com

Timeline

Published
Nov 12, 2021
Last Updated
Nov 21, 2024

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