Home/CVE/An internal shell was included in BIOS image in some ThinkPad models that could allow escalation of privilege.
CVE

CVE-2020-8320

An internal shell was included in BIOS image in some ThinkPad models that could allow escalation of privilege.

An internal shell was included in BIOS image in some ThinkPad models that could allow escalation of privilege.

MEDIUM · CVSS 6.4 EPSS 0.00047
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-269Improper Privilege Management
CWE-489Active Debug Code
▤

Affected Products & Versions

60
lenovo thinkpad 11e yoga gen 6 firmware< 2020-07-10
lenovo thinkpad 11e firmware< 2020-07-10
lenovo thinkpad yoga 11e 3rd gen firmware< 2020-07-10
lenovo thinkpad yoga 11e 4th gen firmware< 2020-07-10
lenovo thinkpad yoga 11e 5th gen firmware< 2020-07-10
lenovo thinkpad 13 2nd gen firmware< 2020-07-10
lenovo thinkpad 13 firmware< 2020-07-10
lenovo thinkpad a275 firmware< 2020-07-10
▣

Scoring & Timeline

6.4
MEDIUM · CVSS v3.1 · psirt@lenovo.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD09 Jun 2020 · 08:15 PM
CVSS VectorCVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://support.lenovo.com/us/en/product_security/LEN-30042Vendor Advisory
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