CVE-2020-8335 json
The BIOS tamper detection mechanism was not triggered in Lenovo ThinkPad A285, BIOS versions up to r0xuj70w; A485, BIOS versions up to r0wu…
published 2020-09-01 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-29202
- cvss
- 6.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 24%
- public exploits
- 0
- none known
Summary
The BIOS tamper detection mechanism was not triggered in Lenovo ThinkPad A285, BIOS versions up to r0xuj70w; A485, BIOS versions up to r0wuj65w; T495 BIOS versions up to r12uj55w; T495s/X395, BIOS versions up to r13uj47w, while the emergency-reset button is pressed which may allow for unauthorized access.
Patch / fix
- Lenovo ThinkPad A285 BIOS r0xuj70w
- Lenovo ThinkPad A485 BIOS r0wuj65w
- Lenovo ThinkPad T495 BIOS r12uj55w
- Lenovo ThinkPad T495s/X395 BIOS r13uj47w
Exploit prediction
0.31% chance of exploitation in the next 30 days, higher than 24% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.1 | CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H |
| NVD | 3.1 | 6.8 | CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 4.6 | AV:L/AC:L/Au:N/C:P/I:P/A:P |
Affected products
- Lenovo ThinkPad A285 BIOS
- Lenovo ThinkPad A485 BIOS
- Lenovo ThinkPad T495 BIOS
- Lenovo ThinkPad T495s/X395 BIOS
References
-
support.lenovo.com
/us/en/product_security/LEN-30042
vendor-advisory
Sources
- CVE List CVE-2020-8335
- NVD CVE-2020-8335
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