Epyc 7763 Firmware
CVE-2021-26331
HIGH
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
1DescriptionNVD
AMD System Management Unit (SMU) contains a potential issue where a malicious user may be able to manipulate mailbox entries leading to arbitrary code execution.
AnalysisAI
AMD System Management Unit (SMU) contains a potential issue where a malicious user may be able to manipulate mailbox entries leading to arbitrary code execution. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
Technical ContextAI
This vulnerability is classified under CWE-20. AMD System Management Unit (SMU) contains a potential issue where a malicious user may be able to manipulate mailbox entries leading to arbitrary code execution. Affected products include: Amd Epyc 7003 Firmware, Amd Epyc 7002 Firmware, Amd Epyc 7001 Firmware, Amd Epyc 72F3 Firmware, Amd Epyc 7313 Firmware.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
More in Epyc 7763 Firmware
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An attacker with a compromised ASP could possibly send malformed commands to an ASP on another CPU, resulting in an out
Same weakness CWE-20 – Improper Input Validation
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External POC / Exploit Code
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