Buffer overflow in Amd 2nd Gen Epyc™
CVE-2021-46764
Improper validation of DRAM addresses in SMU may allow an attacker to overwrite sensitive memory locations within the ASP potentially resulting in a denial of service.
Vulnerability class: Buffer Overflow
EPSS: 0.006 (46.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Amd 2nd Gen Epyc™ — versions various
- Amd 3rd Gen Epyc™ — versions various
- Amd Epyc_7232p
- Amd Epyc_7232p_firmware — versions romepi_1.0.0.e
- Amd Epyc_7252
- Amd Epyc_7252_firmware — versions romepi_1.0.0.e
- Amd Epyc_7262
- Amd Epyc_7262_firmware — versions romepi_1.0.0.e
- Amd Epyc_7272
- Amd Epyc_7272_firmware — versions romepi_1.0.0.e
Weakness classification (CWE)
References
- psirt@amd.com (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-46764?
- CVE-2021-46764 is a high-severity vulnerability in Amd 2nd Gen Epyc™, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2023-05-09.
- How severe is CVE-2021-46764?
- High severity. CVSS v3 base score is 7.5 out of 10.