Vulnerability in AMD 2nd Gen Epyc™
CVE-2021-26338
Improper access controls in System Management Unit (SMU) may allow for an attacker to override performance control tables located in DRAM resulting in a potential lack of system resources.
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: 0.009 (60.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 60.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- AMD 2nd Gen Epyc™ — versions unspecified
- AMD 3rd Gen Epyc™ — versions unspecified
- AMD Epyc 7232p
- AMD Epyc 7232p Firmware
- AMD Epyc 7252
- AMD Epyc 7252 Firmware
- AMD Epyc 7262
- AMD Epyc 7262 Firmware
- AMD Epyc 7272
- AMD Epyc 7272 Firmware
Weakness classification (CWE)
References
- www.amd.com/en/corporate/product-security/bulletin/amd-sb-1021 (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-26338?
- CVE-2021-26338 is a high-severity vulnerability in AMD 2nd Gen Epyc™, classified under Improper Access Control. CVSS score: 7.5/10. Published 2021-11-16.
- How severe is CVE-2021-26338?
- High severity. CVSS v3 base score is 7.5 out of 10.