What is CVE-2021-0066?

CVE-2021-0066 is a high-severity vulnerability in Intel Amt Ac 8260, classified under Improper Input Validation. CVSS score: 8.4/10. Published 2022-02-09.

How severe is CVE-2021-0066?

High severity. CVSS v3 base score is 8.4 out of 10.

Improper input validation in Intel Amt Ac 8260

CVE-2021-0066

Improper input validation in firmware for Intel(R) PROSet/Wireless Wi-Fi in multiple operating systems and Killer(TM) Wi-Fi in Windows 10 and 11 may allow an unauthenticated user to potentially enable escalation of privilege via local access.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2022-02-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.003 (22.7th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 23rd percentile — 22.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00539.html (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2021-0066?: CVE-2021-0066 is a high-severity vulnerability in Intel Amt Ac 8260, classified under Improper Input Validation. CVSS score: 8.4/10. Published 2022-02-09.
How severe is CVE-2021-0066?: High severity. CVSS v3 base score is 8.4 out of 10.