VulnerabilityModified
CVE-2021-46774
Insufficient DRAM address validation in System Management Unit (SMU) may allow an attacker to read/write from/to an invalid DRAM address, potentially resulting in denial-of-service.
HIGH 7.5EPSS 0.51%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.51%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Insufficient DRAM address validation in System Management Unit (SMU) may allow an attacker to read/write from/to an invalid DRAM address, potentially resulting in denial-of-service.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.51% probability · 42th percentile
- CISA KEV
- Not listed
- Affected
- amd/epyc 7001 firmware · amd/epyc 7251 firmware · amd/epyc 7261 firmware · amd/epyc 7281 firmware · amd/epyc 7301 firmware · amd/epyc 7351 firmware · amd/epyc 7351p firmware · amd/epyc 7371 firmware · amd/epyc 7401 firmware · amd/epyc 7401p firmware · amd/epyc 7451 firmware · amd/epyc 7501 firmware · amd/epyc 7551 firmware · amd/epyc 7551p firmware · amd/epyc 7601 firmware · amd/epyc 7232p firmware · amd/epyc 7252 firmware · amd/epyc 7262 firmware · amd/epyc 7272 firmware · amd/epyc 7282 firmware · +40 more
- Source
- psirt@amd.com
References
- https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3002Vendor Advisory
- https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4002Vendor Advisory
- https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-5001
- https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3002Vendor Advisory
- https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4002Vendor Advisory
- https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-5001
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.