CVE-2022-23821

high-risk
Published 2023-11-14

Improper access control in System Management Mode (SMM) may allow an attacker to write to SPI ROM potentially leading to arbitrary code execution.

Do I need to act?

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0.43% 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
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (20)

Ryzen 9 3900 Firmware
Ryzen 9 3900 Firmware
Ryzen 9 3900Xt Firmware
Ryzen 9 3900Xt Firmware
Ryzen 5 3500 Firmware
Ryzen 5 3500 Firmware
Ryzen 5 3500X Firmware
Ryzen 5 3500X Firmware

Affected Vendors

Amd

References (4)

Third Party Advisory https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4002
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-5001
Third Party Advisory https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4002
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-5001
65
/ 100
high-risk
Severity 32/34 · Critical
Exploitability 2/34 · Minimal
Exposure 31/34 · Critical