CVE-2021-21571CWE-295

Dell UEFI BIOS https stack leveraged by the Dell BIOSConnect feature and Dell HTTPS Boot feature contains an improper certificate validation vulnerability

Medium · published June 24, 2021

CVSS v3.1
5.9
EPSS
1%
Percentile
44.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.9 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H
CVSS v4.0
Not supplied
EPSS
0.00539 · 44.6th percentile
Weakness
CWE-295 · Improper Certificate Validation
Published
2021-06-24T17:00Z
EPSS history
Timeline
  • 24 JUN 17:00Z
    Dell UEFI BIOS https stack leveraged by the Dell BIOSConnect feature and Dell HTTPS Boot feature contains an improper certificate validation vulnerability
    cvelistv5