What is CVE-2021-26335?

CVE-2021-26335 is a high-severity vulnerability in Amd Athlon™ Series. CVSS score: 7.8/10. Published 2021-11-16.

How severe is CVE-2021-26335?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Amd Athlon™ Series

CVE-2021-26335

Improper input and range checking in the AMD Secure Processor (ASP) boot loader image header may allow an attacker to use attacker-controlled values prior to signature validation potentially resulting in arbitrary code execution.

EPSS: 0.003 (20.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Amd Athlon™ Series — versions various
Amd Epyc_7001
Amd Epyc_7001_firmware
Amd Epyc_7002
Amd Epyc_7002_firmware
Amd Epyc_7003
Amd Epyc_7003_firmware
Amd Epyc_7232p
Amd Epyc_7232p_firmware
Amd Epyc_7251

References

psirt@amd.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2021-26335?: CVE-2021-26335 is a high-severity vulnerability in Amd Athlon™ Series. CVSS score: 7.8/10. Published 2021-11-16.
How severe is CVE-2021-26335?: High severity. CVSS v3 base score is 7.8 out of 10.