CVE-2021-3970
MEDIUM
6.7
CVSS Score
Published: April 22, 2022 at 08:30 PM UTC
Updated: June 17, 2026 at 04:06 AM UTC
211 products affected across 1 vendorIdeapad Gaming 3-15imh05 FirmwareLegion 5-15ith6 FirmwareLegion 5-15ith6h Firmware
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Severity
MEDIUM6.7
Exploit prediction
EPSS 1%
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < e8cn33ww
Affected range stops below e8cn33ww, so it looks safe — our inference, not a vendor statement
lenovo-ideapad-3-14ada05 (same device)
v < hbcn21ww
Affected range stops below hbcn21ww, so it looks safe — our inference, not a vendor statement
lenovo-ideapad-3-14ada6 (same device)
v < glcn43ww
Affected range stops below glcn43ww, so it looks safe — our inference, not a vendor statement
lenovo-ideapad-3-14alc6 (same device)
v < dzcn42ww
Affected range stops below dzcn42ww, so it looks safe — our inference, not a vendor statement
lenovo-ideapad-3-14are05 (same device)
v < emcn52ww
Affected range stops below emcn52ww, so it looks safe — our inference, not a vendor statement
lenovo-ideapad-3-14igl05 (same device)
v < dvcn23ww
Affected range stops below dvcn23ww, so it looks safe — our inference, not a vendor statement
lenovo-ideapad-3-14iil05 (same device)
v < dxcn41ww
Affected range stops below dxcn41ww, so it looks safe — our inference, not a vendor statement
lenovo-ideapad-3-14iml05 (same device)
v < gccn26ww
Affected range stops below gccn26ww, so it looks safe — our inference, not a vendor statement
lenovo-ideapad-3-14itl05 (same device)
v < ggcn33ww
Affected range stops below ggcn33ww, so it looks safe — our inference, not a vendor statement
lenovo-ideapad-3-14itl6 (same device)
v < e8cn33ww
Affected range stops below e8cn33ww, so it looks safe — our inference, not a vendor statement
lenovo-ideapad-3-15ada05 (same device)
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
x_refsource_MISCVendor Advisory
Source: [email protected]
https://support.lenovo.com/us/en/product_security/LEN-73440CVSS
6.7MEDIUMlenovo
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- HIGH
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-20
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