Lenovo Thinkpad x1 Carbon 3rd Gen Firmware vulnerabilities

4 CVEs affecting Lenovo Thinkpad x1 Carbon 3rd Gen Firmware, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2022-1107, published 2022-04-22.

Highest priority

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-2022-1107, published 2022-04-22. Medium severity, CVSS 6.7. EPSS: 0.3% chance of exploitation in the next 30 days. During an internal product security audit a potential vulnerability due to use of Boot Services in the SmmOEMInt15 SMI handler was discovered in some ThinkPad models could be exploited by an attacker…
CVE-2021-3453, published 2021-07-16. Medium severity, CVSS 4.6. EPSS: 0.2% chance of exploitation in the next 30 days. Some Lenovo Notebook, ThinkPad, and Lenovo Desktop systems have BIOS modules unprotected by Intel Boot Guard that could allow an attacker with physical access the ability to write to the SPI flash…
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.