Medium severity · published Sep 1, 2020
CVE-2020-8335
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;…
6.8
CVSS
0.3%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Physical
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 24% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TA
Thinkpad A275 Firmware · Lenovo
before 2020-08-30 · source: NVD
TA
Thinkpad A285 Firmware · Lenovo
before 2020-08-30 · source: NVD
TA
Thinkpad A475 Firmware · Lenovo
before 2020-08-30 · source: NVD
TA
Thinkpad A485 Firmware · Lenovo
before 2020-08-30 · source: NVD
TT
Thinkpad T495 Drift Firmware · Lenovo
before 2020-08-30 · source: NVD
TT
Thinkpad T495s Jazz Firmware · Lenovo
before 2020-08-30 · source: NVD
TX
Thinkpad X1 Carbon (20bx) Firmware · Lenovo
before n14et54w · source: NVD
TX
Thinkpad X395 Firmware · Lenovo
before 2020-08-30 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-8335
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-8335
Vendor Advisory
https://support.lenovo.com/us/en/product_security/LEN-30042
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