What is CVE-2021-33086?

CVE-2021-33086 is a medium-severity vulnerability in Intel Nuc 10 Performance Kit Nuc10i3fnh, classified under Out-of-bounds Write. CVSS score: 5.5/10. Published 2021-11-17.

How severe is CVE-2021-33086?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Buffer overflow in Intel Nuc 10 Performance Kit Nuc10i3fnh

CVE-2021-33086

Out-of-bounds write in firmware for some Intel(R) NUCs may allow an authenticated user to potentially enable denial of service via local access.

Vulnerability class: Buffer Overflow

Published 2021-11-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.002 (11.1th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 11.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00567.html (Vendor Advisory)

Frequently asked questions

What is CVE-2021-33086?: CVE-2021-33086 is a medium-severity vulnerability in Intel Nuc 10 Performance Kit Nuc10i3fnh, classified under Out-of-bounds Write. CVSS score: 5.5/10. Published 2021-11-17.
How severe is CVE-2021-33086?: Medium severity. CVSS v3 base score is 5.5 out of 10.