What is CVE-2019-14557?

CVE-2019-14557 is a high-severity vulnerability in Intel Bios, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.0/10. Published 2020-10-05.

How severe is CVE-2019-14557?

High severity. CVSS v3 base score is 8.0 out of 10.

Buffer overflow in Intel Bios

CVE-2019-14557

Buffer overflow in BIOS firmware for 8th, 9th, 10th Generation Intel(R) Core(TM), Intel(R) Celeron(R) Processor 4000 & 5000 Series Processors may allow an authenticated user to potentially enable elevation of privilege or denial of service via adjacent access.

Vulnerability class: Buffer Overflow

Published 2020-10-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.005 (45.9th percentile), scored 2026-11-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 45.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · 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-00356.html (Vendor Advisory)

Frequently asked questions

What is CVE-2019-14557?: CVE-2019-14557 is a high-severity vulnerability in Intel Bios, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.0/10. Published 2020-10-05.
How severe is CVE-2019-14557?: High severity. CVSS v3 base score is 8.0 out of 10.