Cyber Resilience

CVE-2021-46765

High

Published: 09 May 2023

Published
09 May 2023
Modified
27 January 2025
KEV Added
—
Patch
—
CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0054 67.9th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-46765 is a high-severity Out-of-bounds Read (CWE-125) vulnerability in Amd Ryzen 5300G Firmware. Its CVSS base score is 7.5 (High).

Operationally, ranked in the top 32.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Insufficient input validation in ASP may allow an attacker with a compromised SMM to induce out-of-bounds memory reads within the ASP, potentially leading to a denial of service.

CWE(s)
CWE-125

Related Threats

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

Affected Assets

amd
ryzen 6600h firmware
rembrandtpi-fp7_1.0.0.5
amd
ryzen 6600hs firmware
rembrandtpi-fp7_1.0.0.5
amd
ryzen 6600u firmware
rembrandtpi-fp7_1.0.0.5
amd
ryzen 6800h firmware
rembrandtpi-fp7_1.0.0.5
amd
ryzen 6800hs firmware
rembrandtpi-fp7_1.0.0.5
amd
ryzen 6800u firmware
rembrandtpi-fp7_1.0.0.5
amd
ryzen 6900hs firmware
rembrandtpi-fp7_1.0.0.5
amd
ryzen 6900hx firmware
rembrandtpi-fp7_1.0.0.5
amd
ryzen 6980hs firmware
rembrandtpi-fp7_1.0.0.5
amd
ryzen 6980hx firmware
rembrandtpi-fp7_1.0.0.5
+34 more product configuration(s) — see NVD for full list

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References