CVE-2021-3970, CVE-2021-3971, CVE-2021-3972: Lenovo UEFI Firmware Vulnerabilities Vulnerability CVE-2021-3970, CVE-2021-3971, CVE-2021-3972: Lenovo UEFI Firmware Vulnerabilities Ddos April 20, 2022 0 Read More Read more about CVE-2021-3970, CVE-2021-3971, CVE-2021-3972: Lenovo UEFI Firmware Vulnerabilities