Medium severity · published Jun 9, 2020
CVE-2020-8320
An internal shell was included in BIOS image in some ThinkPad models that could allow escalation of privilege
6.8
CVSS
0.3%
EPSS
No
On KEV
Description
An internal shell was included in BIOS image in some ThinkPad models that could allow escalation of privilege.
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 21% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
T1
Thinkpad 11e Firmware · Lenovo
before 2020-07-10 · source: NVD
T1
Thinkpad 11e Yoga Gen 6 Firmware · Lenovo
before 2020-07-10 · source: NVD
T1
Thinkpad 13 2nd Gen Firmware · Lenovo
before 2020-07-10 · source: NVD
T1
Thinkpad 13 Firmware · Lenovo
before 2020-07-10 · source: NVD
TA
Thinkpad A275 Firmware · Lenovo
before 2020-07-10 · source: NVD
TA
Thinkpad A285 Firmware · Lenovo
before 2020-07-10 · source: NVD
TA
Thinkpad A475 Firmware · Lenovo
before 2020-07-10 · source: NVD
TA
Thinkpad A485 Firmware · Lenovo
before 2020-07-10 · source: NVD
TE
Thinkpad E14 Firmware · Lenovo
before 2020-07-10 · source: NVD
TE
Thinkpad E15 Firmware · Lenovo
before 2020-07-10 · source: NVD
TE
Thinkpad E455 Firmware · Lenovo
before 2020-07-10 · source: NVD
TE
Thinkpad E460 Firmware · Lenovo
before 2020-07-10 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-8320
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-8320
Vendor Advisory
https://support.lenovo.com/us/en/product_security/LEN-30042
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