What is CVE-2021-0115?

CVE-2021-0115 is a medium-severity vulnerability in Intel Atom C3308, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.7/10. Published 2022-02-09.

How severe is CVE-2021-0115?

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

Buffer overflow in Intel Atom C3308

CVE-2021-0115

Buffer overflow in the firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access.

Vulnerability class: Buffer Overflow

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 (26.3th percentile), scored 2026-11-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 26.3% 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-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00527.html (Vendor Advisory)
security.netapp.com/advisory/ntap-20220210-0007/ (Third Party Advisory)

Frequently asked questions

What is CVE-2021-0115?: CVE-2021-0115 is a medium-severity vulnerability in Intel Atom C3308, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.7/10. Published 2022-02-09.
How severe is CVE-2021-0115?: Medium severity. CVSS v3 base score is 6.7 out of 10.