What is CVE-2020-12373?

CVE-2020-12373 is a medium-severity vulnerability in Intel Bmc Firmware, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.7/10. Published 2021-02-17.

How severe is CVE-2020-12373?

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

Buffer overflow in Intel Bmc Firmware

CVE-2020-12373

Expired pointer dereference in some Intel(R) Graphics Drivers before version 26.20.100.8141 may allow a privileged user to potentially enable a denial of service via local access.

Vulnerability class: Buffer Overflow

Published 2021-02-17 · 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 (19.1th percentile), scored 2026-11-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 19.1% 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-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

References

www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00438.html (Vendor Advisory)

Frequently asked questions

What is CVE-2020-12373?: CVE-2020-12373 is a medium-severity vulnerability in Intel Bmc Firmware, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.7/10. Published 2021-02-17.
How severe is CVE-2020-12373?: Medium severity. CVSS v3 base score is 6.7 out of 10.