CVE-2021-3718
MEDIUMCVSS 4.6/10EPSS 0.21%
Last modified
CVE-2021-3718 is a medium-severity vulnerability rated 4.6/10 on the CVSS scale. 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.. EPSS estimates a 0.21% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Lenovo | Thinkpad 11e 3rd Gen Firmware | <= 1.22 |
| Lenovo | Thinkpad 11e 3rd Gen Firmware | <= 1.29 |
| Lenovo | Thinkpad 11e 4th Gen I3 Firmware | <= 1.22 |
| Lenovo | Thinkpad 11e 4th Gen I7 Firmware | <= 1.22 |
| Lenovo | Thinkpad 11e 4th Gen I5 Firmware | <= 1.22 |
| Lenovo | Thinkpad 11e 4th Gen Celeron Firmware | <= 1.27 |
| Lenovo | Thinkpad 11e Yoga Gen 6 Firmware | <= 1.12 |
| Lenovo | Thinkpad 13 Gen 2 Firmware | <= 1.29 |
| Lenovo | Thinkpad E490 Firmware | <= 1.30 |
| Lenovo | Thinkpad E490s Firmware | <= 1.30 |
| Lenovo | Thinkpad E590 Firmware | <= 1.30 |
| Lenovo | Thinkpad L13 Firmware | <= 1.31 |
| Lenovo | Thinkpad L13 Gen 2 Firmware | <= 1.11 |
| Lenovo | Thinkpad L13 Gen 2 Firmware | <= 1.08 |
| Lenovo | Thinkpad L13 Yoga Firmware | <= 1.31 |
| Lenovo | Thinkpad L13 Yoga Gen 2 Firmware | <= 1.11 |
| Lenovo | Thinkpad L13 Yoga Gen 2 Firmware | <= 1.08 |
| Lenovo | Thinkpad L14 Gen 1 Firmware | < 1.15 |
| Lenovo | Thinkpad L14 Firmware | < 1.20.1.17 |
| Lenovo | Thinkpad L15 Gen 1 Firmware | < 1.15 |
| Lenovo | Thinkpad L15 Firmware | < 1.20.1.17 |
| Lenovo | Thinkpad L380 Firmware | <= 1.26 |
| Lenovo | Thinkpad L380 Yoga Firmware | <= 1.26 |
| Lenovo | Thinkpad L390 Yoga Firmware | <= 1.35 |
| Lenovo | Thinkpad L390 Firmware | <= 1.35 |
| Lenovo | Thinkpad L490 Firmware | < 1.26 |
| Lenovo | Thinkpad L590 Firmware | < 1.26 |
| Lenovo | Thinkpad P43s Firmware | < n2iet96w |
| Lenovo | Thinkpad P52 Firmware | < n2cet60w |
| Lenovo | Thinkpad P53s Firmware | < n2iet96w |
| Lenovo | Thinkpad P72 Firmware | < n2cet60w |
| Lenovo | Thinkpad S5 2nd Gen Firmware | <= 1.28 |
| Lenovo | Thinkpad T460 Firmware | <= 1.43.1.11 |
| Lenovo | Thinkpad T490 Firmware | < n2iet96w |
| Lenovo | Thinkpad T590 Firmware | < n2iet96w |
| Lenovo | Thinkpad S2 Gen 6 Firmware | <= 2021-09-30 |
| Lenovo | Thinkpad S2 Yoga Gen 6 Firmware | <= 2021-09-30 |
| Lenovo | Thinkpad X12 Detachable Gen 1 Firmware | < 1.16 |
| Lenovo | Thinkpad X260 Firmware | <= 1.47\/1.15 |
| Lenovo | Thinkpad X380 Yoga Firmware | <= 1.34 |
| Lenovo | Thinkpad X390 Yoga Firmware | < n2let87w |
| Lenovo | Thinkpad 11e 5th Gen Firmware | <= 1.13 |
References
- https://support.lenovo.com/us/en/product_security/LEN-72619Vendor Advisory
- https://support.lenovo.com/us/en/product_security/LEN-72619Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-3718?
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.
How severe is CVE-2021-3718?
CVE-2021-3718 has a CVSS score of 4.6/10 (MEDIUM severity). The EPSS model estimates a 0.21% probability of exploitation in the next 30 days.
How do I fix CVE-2021-3718?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-3718?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST