Lenovo Thinkpad x12 Detachable Gen 1 Firmware vulnerabilities

7 CVEs affecting Lenovo Thinkpad x12 Detachable Gen 1 Firmware, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2022-48189, 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-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-2021-3718, published 2021-11-12. Medium severity, CVSS 4.6. EPSS: 0.2% chance of exploitation in the next 30 days. A denial of service vulnerability was reported in some ThinkPad models that could cause a system to crash when the Enhanced Biometrics setting is enabled in BIOS.
• CVE-2022-40134, published 2023-01-30. Medium severity, CVSS 4.4. EPSS: 0.2% chance of exploitation in the next 30 days. An information leak vulnerability in the SMI Set BIOS Password SMI Handler in some Lenovo models may allow an attacker with local access and elevated privileges to read SMM memory.
• CVE-2022-48189, published 2023-10-30. Medium severity, CVSS 6.7. EPSS: 0.2% chance of exploitation in the next 30 days. An SMM driver 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-2023-2290, published 2023-06-26. Medium severity, CVSS 6.7. EPSS: 0.2% chance of exploitation in the next 30 days. A potential vulnerability in the LenovoFlashDeviceInterface SMI handler may allow an attacker with local access and elevated privileges to execute arbitrary code.