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CVE-2021-3718

MEDIUM
4.6
CVSS Score
Published: November 12, 2021 at 10:05 PM UTC
Updated: June 17, 2026 at 04:05 AM UTC
79 products affected across 1 vendorThinkPad L390 YogaThinkPad X390 Yoga FirmwareThinkPad E490 Firmware· also runs on 4 platforms

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Severity
MEDIUM4.6
Exploit prediction
EPSS 0.2%

Description

A denial of service vulnerability was reported in some ThinkPad models that could cause a system to crash when the Enhanced Biometrics setting is enabled in BIOS.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

ThinkPad 11E 3RD Gen Firmware· Lenovo
95%
v ≤ 1.22v ≤ 1.29
microsoft-windows-10 (environment) · microsoft-windows-7 (environment) · microsoft-windows-8-1 (environment) · lenovo-thinkpad-11e-3rd-gen (same device)
ThinkPad 11E 4TH Gen Celeron Firmware· Lenovo
95%
v ≤ 1.27
microsoft-windows-10 (environment) · lenovo-thinkpad-11e-4th-gen-celeron (same device)
ThinkPad 11E 4TH Gen I3 Firmware· Lenovo
95%
v ≤ 1.22
microsoft-windows-10 (environment) · lenovo-thinkpad-11e-4th-gen-i3 (same device)
ThinkPad 11E 4TH Gen I5 Firmware· Lenovo
95%
v ≤ 1.22
microsoft-windows-10 (environment) · lenovo-thinkpad-11e-4th-gen-i5 (same device)
ThinkPad 11E 4TH Gen I7 Firmware· Lenovo
95%
v ≤ 1.22
microsoft-windows-10 (environment) · lenovo-thinkpad-11e-4th-gen-i7 (same device)
ThinkPad 11E 5TH Gen Firmware· Lenovo
95%
v ≤ 1.13
lenovo-thinkpad-yoga-370 (environment) · microsoft-windows-10 (environment) · lenovo-thinkpad-11e-5th-gen (same device)
ThinkPad 11E Yoga Gen 6 Firmware· Lenovo
95%
v ≤ 1.12
microsoft-windows-10 (environment) · lenovo-thinkpad-11e-yoga-gen-6 (same device)
ThinkPad 13 Gen 2 Firmware· Lenovo
95%
v ≤ 1.29
microsoft-windows-10 (environment) · lenovo-thinkpad-13-gen-2 (same device)
ThinkPad E490 Firmware· Lenovo
95%
v ≤ 1.30
microsoft-windows-10 (environment)
ThinkPad E490S Firmware· Lenovo
95%
v ≤ 1.30
microsoft-windows-10 (environment) · lenovo-thinkpad-e490s (same device)

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

Remediation

No guide yet

No 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-72619

CVSS

4.6MEDIUM[email protected]
Attack Vector
PHYSICAL
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-232NVD-CWE-noinfo

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