What is CVE-2021-21571?

CVE-2021-21571 is a medium-severity vulnerability in Dell Alienware M15 R6, classified under Improper Certificate Validation. CVSS score: 5.9/10. Published 2021-06-24.

How severe is CVE-2021-21571?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Vulnerability in Dell Alienware M15 R6

CVE-2021-21571

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.

Vulnerability class: Improper Certificate Validation

EPSS: 0.006 (46.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H.

Affected products

Weakness classification (CWE)

CWE-295 — Improper Certificate Validation

References

security_alert@emc.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-21571?: CVE-2021-21571 is a medium-severity vulnerability in Dell Alienware M15 R6, classified under Improper Certificate Validation. CVSS score: 5.9/10. Published 2021-06-24.
How severe is CVE-2021-21571?: Medium severity. CVSS v3 base score is 5.9 out of 10.