Home/CVE/A vulnerability due to improper write protection of UEFI variables was reported in the BIOS of some ThinkPad models coul
CVE

CVE-2022-4575

A vulnerability due to improper write protection of UEFI variables was reported in the BIOS of some ThinkPad models coul

A vulnerability due to improper write protection of UEFI variables was reported in the BIOS of some ThinkPad models could allow an attacker with physical or local access and elevated privileges the ability to bypass Secure Boot.

MEDIUM · CVSS 6.7 EPSS 5e-05
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-276Incorrect Default Permissions
▤

Affected Products & Versions

13
lenovo thinkpad 25 firmware< 1.73
lenovo thinkpad l560 firmware< 1.62
lenovo thinkpad p50 firmware< 1.71
lenovo thinkpad p50s firmware< 1.45
lenovo thinkpad p70 firmware< 2.45
lenovo thinkpad t470 firmware< 1.73
lenovo thinkpad t470s firmware< 1.49
lenovo thinkpad t560 firmware< 1.45
▣

Scoring & Timeline

6.7
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 NVD30 Oct 2023 · 03:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:H/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-106014Vendor Advisory
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