CVE-2021-26365

high-risk
Published 2023-05-09

Certain size values in firmware binary headers could trigger out of bounds reads during signature validation, leading to denial of service or potentially limited leakage of information about out-of-bounds memory contents.

Do I need to act?

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0.23% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.2/10 High
NETWORK / LOW complexity

Affected Products (20)

Ryzen 5 2400G Firmware
Ryzen 5 2400Ge Firmware
Ryzen 3 2200Ge Firmware
Ryzen 3 2200G Firmware
Ryzen 3 Pro 2100Ge Firmware
Ryzen 9 5900 Firmware
Ryzen 7 5800 Firmware
Ryzen 3 3250C Firmware
Amd 3015E Firmware
Amd 3015Ce Firmware

Affected Vendors

Amd

References (2)

Vendor Advisory https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4001
Vendor Advisory https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4001
55
/ 100
high-risk
Severity 28/34 · Critical
Exploitability 1/34 · Minimal
Exposure 26/34 · High