What is CVE-2021-0166?

CVE-2021-0166 is a medium-severity vulnerability in Intel Amt Ac 8260, classified under Information Disclosure. CVSS score: 6.7/10. Published 2022-02-09.

How severe is CVE-2021-0166?

Medium severity. CVSS v3 base score is 6.7 out of 10.

Information disclosure in Intel Amt Ac 8260

CVE-2021-0166

Exposure of Sensitive Information to an Unauthorized Actor in firmware for some Intel(R) PROSet/Wireless Wi-Fi in multiple operating systems and some Killer(TM) Wi-Fi in Windows 10 and 11 may allow a privileged user to potentially enable escalation of privilege via local access.

Vulnerability class: Information Disclosure

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

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.003 (19.6th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 19.6% 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-200 — Information Disclosure

References

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

Frequently asked questions

What is CVE-2021-0166?: CVE-2021-0166 is a medium-severity vulnerability in Intel Amt Ac 8260, classified under Information Disclosure. CVSS score: 6.7/10. Published 2022-02-09.
How severe is CVE-2021-0166?: Medium severity. CVSS v3 base score is 6.7 out of 10.