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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.006 (49.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
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
- www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3001 (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.