Lenovo Thinkpad x1 Carbon 5th Gen Skylake Firmware vulnerabilities

3 CVEs affecting Lenovo Thinkpad x1 Carbon 5th Gen Skylake Firmware, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2022-1107, published 2022-04-22.

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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-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-2021-3786, 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.