What is CVE-2021-46791?

CVE-2021-46791 is a medium-severity vulnerability in Amd 3rd Gen Epyc, classified under Out-of-bounds Write. CVSS score: 5.5/10. Published 2023-01-11.

How severe is CVE-2021-46791?

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

Buffer overflow in Amd 3rd Gen Epyc

CVE-2021-46791

Insufficient input validation during parsing of the System Management Mode (SMM) binary may allow a maliciously crafted SMM executable binary to corrupt Dynamic Root of Trust for Measurement (DRTM) user application memory that may result i…

Vulnerability class: Buffer Overflow

EPSS: 0.002 (7.8th percentile) — read the EPSS interpretation.

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.

Affected products

Amd 3rd Gen Epyc — versions various
Amd Milanpi
Amd Milanpi_firmware

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

psirt@amd.com (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2021-46791?: CVE-2021-46791 is a medium-severity vulnerability in Amd 3rd Gen Epyc, classified under Out-of-bounds Write. CVSS score: 5.5/10. Published 2023-01-11.
How severe is CVE-2021-46791?: Medium severity. CVSS v3 base score is 5.5 out of 10.