Improper input validation in Amd 1st Gen Epyc
CVE-2021-26316
Failure to validate the communication buffer and communication service in the BIOS may allow an attacker to tamper with the buffer resulting in potential SMM (System Management Mode) arbitrary code execution.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.003 (16.7th 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 1st Gen Epyc — versions various
- Amd 2nd Gen Epyc — versions Various
- Amd 3rd Gen Epyc — versions various
- Amd Athlon_3050ge
- Amd Athlon_3050ge_firmware
- Amd Athlon_3150g
- Amd Athlon_3150ge
- Amd Athlon_3150ge_firmware
- Amd Athlon_3150g_firmware
- Amd Athlon_gold_3150c
Weakness classification (CWE)
References
- psirt@amd.com (vendor-advisory, Vendor Advisory)
- psirt@amd.com (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-26316?
- CVE-2021-26316 is a high-severity vulnerability in Amd 1st Gen Epyc, classified under Improper Input Validation. CVSS score: 7.8/10. Published 2023-01-11.
- How severe is CVE-2021-26316?
- High severity. CVSS v3 base score is 7.8 out of 10.