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CVE-2021-21571

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CVE-2021-21571

Published: Jun 24, 2021

Modified: Sep 16, 2024

PUBLISHED

CVSS v3.1

5.9

MEDIUM

Description

Dell UEFI BIOS https stack leveraged by the Dell BIOSConnect feature and Dell HTTPS Boot feature contains an improper certificate validation vulnerability. A remote unauthenticated attacker may exploit this vulnerability using a person-in-the-middle attack which may lead to a denial of service and payload tampering.

VendorProductVersions

Dell

UEFI BIOS https stack

affected
Gen 11, Gen 10

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

High

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