CVE-2021-21571

CVE-2021-21571 concerns the Dell BIOSConnect/HTTPS Boot stack in Dell UEFI BIOS. The vulnerability is due to improper certificate validation in the BIOSConnect HTTPS path, enabling a MITM attacker to remotely deliver content and potentially cause denial of service and payload tampering. Affected ...

CVE-2021-21574

Dell BIOSConnect vulnerability (CVE-2021-21574) is a buffer overflow in the Dell BIOSConnect feature of Dell Client BIOS. Exploitation requires an authenticated, local admin user and can lead to arbitrary code execution with UEFI/BIOS privileges, potentially bypassing UEFI restrictions. Public de...

CVE-2021-21573

Dell BIOSConnect feature contains a buffer overflow (CVE-2021-21573) in the Dell Client BIOS. An authenticated local admin can exploit this to execute arbitrary code and bypass UEFI restrictions. Dell released patches via BIOS firmware updates (per advisory 000188682); ensure affected systems are...

CVE-2021-21572

CVE-2021-21572 is a Dell BIOSConnect buffer-overflow vulnerability in the Dell Client BIOS. An authenticated malicious admin with local access could exploit the flaw to execute arbitrary code and bypass UEFI restrictions. Several connected sources (CNVD, NVD, CNNSC/nasl-like advisories, and Nessu...