CVE-2021-46769
Insufficient syscall input validation in the ASP Bootloader may allow a privileged attacker to execute arbitrary DMA copies, which can lead to code execution.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.78%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Insufficient syscall input validation in the ASP Bootloader may allow a privileged attacker to execute arbitrary DMA copies, which can lead to code execution.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.78% probability · 56th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- amd/epyc 72f3 firmware · amd/epyc 7313 firmware · amd/epyc 7313p firmware · amd/epyc 7343 firmware · amd/epyc 7373x firmware · amd/epyc 73f3 firmware · amd/epyc 7413 firmware · amd/epyc 7443 firmware · amd/epyc 7443p firmware · amd/epyc 7453 firmware · amd/epyc 7473x firmware · amd/epyc 74f3 firmware · amd/epyc 7513 firmware · amd/epyc 7543 firmware · amd/epyc 7543p firmware · amd/epyc 7573x firmware · amd/epyc 75f3 firmware · amd/epyc 7643 firmware · amd/epyc 7663 firmware · amd/epyc 7713 firmware · +28 more
- Source
- psirt@amd.com
EPSS 0.8% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.