Cyber Resilience

CVE-2021-46762

Low

Published: 09 May 2023

Published
09 May 2023
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 3.9 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L
EPSS Score 0.0005 16.4th percentile
Risk Priority 8 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-46762 is a low-severity Improper Input Validation (CWE-20) vulnerability in Amd Epyc 72F3 Firmware. Its CVSS base score is 3.9 (Low).

Operationally, ranked at the 16.4th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Insufficient input validation in the SMU may allow an attacker to corrupt SMU SRAM potentially leading to a loss of integrity or denial of service.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

amd
epyc 72f3 firmware
milanpi_1.0.0.9
amd
epyc 7313 firmware
milanpi_1.0.0.9
amd
epyc 7313p firmware
milanpi_1.0.0.9
amd
epyc 7343 firmware
milanpi_1.0.0.9
amd
epyc 7373x firmware
milanpi_1.0.0.9
amd
epyc 73f3 firmware
milanpi_1.0.0.9
amd
epyc 7413 firmware
milanpi_1.0.0.9
amd
epyc 7443 firmware
milanpi_1.0.0.9
amd
epyc 7443p firmware
milanpi_1.0.0.9
amd
epyc 7453 firmware
milanpi_1.0.0.9
+38 more product configuration(s) — see NVD for full list

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-20

Security testing and developer training directly verify and enforce proper input validation, reducing exploitability of injection and malformed-data weaknesses.

addresses: CWE-20

Security testing and evaluation at multiple SDLC stages directly detects missing or flawed input validation, with the required remediation process ensuring fixes are applied.

addresses: CWE-20

Directly implements checks on information inputs to reject invalid data before processing.

addresses: CWE-20

Spam protection mechanisms perform filtering and detection on inbound/outbound messages, directly compensating for missing or weak input validation of unsolicited content.

References