CVE-2021-3718 json
A denial of service vulnerability was reported in some ThinkPad models that could cause a system to crash when the Enhanced Biometrics sett…
published 2021-11-12 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-26998
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 12%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- 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_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_t490_firmware n2iet96w
- lenovo thinkpad_t590_firmware n2iet96w
- lenovo thinkpad_x12_detachable_gen_1_firmware 1.16
- lenovo thinkpad_x390_yoga_firmware n2let87w
Exploit prediction
0.22% chance of exploitation in the next 30 days, higher than 12% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
| NVD | 3.1 | 4.6 | CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 4.7 | AV:L/AC:M/Au:N/C:N/I:N/A:C |
Affected products
- Lenovo ThinkPad BIOS
Classification
- Weakness
-
- CWE-232 Improper Handling of Undefined Values
References
-
support.lenovo.com
/us/en/product_security/LEN-72619
vendor-advisory
Sources
- CVE List CVE-2021-3718
- NVD CVE-2021-3718
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