Lenovo Thinkpad x1 Fold Gen 1 Firmware vulnerabilities

6 CVEs affecting Lenovo Thinkpad x1 Fold Gen 1 Firmware, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2022-4574, published 2023-10-30.

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Known exploited (CISA KEV) first, then by EPSS exploit probability.

• CVE-2021-3599, published 2021-11-12. Medium severity, CVSS 6.7. EPSS: 0.3% chance of exploitation in the next 30 days. A potential vulnerability in the SMI callback function used to access flash device in some ThinkPad models may allow an attacker with local access and elevated privileges to execute arbitrary code.
• CVE-2021-3843, published 2021-11-12. Medium severity, CVSS 6.7. EPSS: 0.3% chance of exploitation in the next 30 days. A potential vulnerability in the SMI function to access EEPROM in some ThinkPad models may allow an attacker with local access and elevated privileges to execute arbitrary code.
• CVE-2022-1108, published 2022-04-22. Medium severity, CVSS 6.7. EPSS: 0.3% chance of exploitation in the next 30 days. A potential vulnerability due to improper buffer validation in the SMI handler LenovoFlashDeviceInterface in Thinkpad X1 Fold Gen 1 could be exploited by an attacker with local access and elevated…
• CVE-2021-3786, published 2021-11-12. Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days. A potential vulnerability in the SMI callback function used in CSME configuration of some Lenovo Notebook and ThinkPad systems could be used to leak out data out of the SMRAM range.
• CVE-2022-4574, published 2023-10-30. Medium severity, CVSS 6.7. EPSS: 0.2% chance of exploitation in the next 30 days. An SMI handler input validation vulnerability in the BIOS of some ThinkPad models could allow an attacker with local access and elevated privileges to execute arbitrary code.  
• CVE-2022-4573, published 2023-10-30. Medium severity, CVSS 6.7. EPSS: 0.2% chance of exploitation in the next 30 days. An SMI handler input validation vulnerability in the ThinkPad X1 Fold Gen 1 could allow an attacker with local access and elevated privileges to execute arbitrary code.