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MEDIUM · 6.7

CVE-2021-3970

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 ar...

Vulnerability 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.

CVSS Score

6.7

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
LenovoIdeapad 3-14Ada05 Firmware< e8cn33ww
LenovoIdeapad 3-14Ada05-
LenovoIdeapad 3-14Ada6 Firmware< hbcn21ww
LenovoIdeapad 3-14Ada6-
LenovoIdeapad 3-14Alc6 Firmware< glcn43ww
LenovoIdeapad 3-14Alc6-
LenovoIdeapad 3-14Are05 Firmware< dzcn42ww
LenovoIdeapad 3-14Are05-
LenovoIdeapad 3-15Ada6 Firmware< hbcn21ww
LenovoIdeapad 3-15Ada6-
LenovoIdeapad 3-15Alc6 Firmware< glcn43ww
LenovoIdeapad 3-15Alc6-
LenovoIdeapad 3-15Are05 Firmware< dzcn42ww
LenovoIdeapad 3-15Are05-
LenovoIdeapad 3-15Igl05 Firmware< dvcn23ww
LenovoIdeapad 3-15Igl05-
LenovoIdeapad 3-17Ada05 Firmware< e8cn33ww
LenovoIdeapad 3-17Ada05-
LenovoIdeapad 3-17Ada6 Firmware< hbcn21ww
LenovoIdeapad 3-17Ada6-

Related Weaknesses (CWE)

CWE-20

References

FAQ

What is CVE-2021-3970?

CVE-2021-3970 is a vulnerability with a CVSS score of 6.7 (MEDIUM). 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 ar...

How severe is CVE-2021-3970?

CVE-2021-3970 has been rated MEDIUM with a CVSS base score of 6.7/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-3970?

Check the references section above for vendor advisories and patch information. Affected products include: Lenovo Ideapad 3-14Ada05 Firmware, Lenovo Ideapad 3-14Ada05, Lenovo Ideapad 3-14Ada6 Firmware, Lenovo Ideapad 3-14Ada6, Lenovo Ideapad 3-14Alc6 Firmware.