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CVE-2021-26317

HIGHCVSS 7.8/10EPSS 0.27%

Last modified

CVE-2021-26317 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Failure to verify the protocol in SMM may allow an attacker to control the protocol and modify SPI flash resulting in a potential arbitrary code execution.. EPSS estimates a 0.27% chance of exploitation in the next 30 days.

Description

Failure to verify the protocol in SMM may allow an attacker to control the protocol and modify SPI flash resulting in a potential arbitrary code execution.

Metrics

CVSS 3.1
7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
0.27%

18.3th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
AmdRadeon SoftwareAll versions
AmdRyzen 3 2200u FirmwareAll versions
AmdRyzen 5300g FirmwareAll versions
AmdRyzen 5300ge FirmwareAll versions
AmdRyzen 5600g FirmwareAll versions
AmdRyzen 5600ge FirmwareAll versions
AmdRyzen 5600x FirmwareAll versions
AmdRyzen 5700g FirmwareAll versions
AmdRyzen 5700ge FirmwareAll versions
AmdAthlon 3050ge FirmwareAll versions
AmdAthlon 3150g FirmwareAll versions
AmdAthlon 3150ge FirmwareAll versions
AmdRyzen 5800x FirmwareAll versions
AmdRyzen 5800x3d FirmwareAll versions
AmdRyzen 5900x FirmwareAll versions
AmdRyzen 5950x FirmwareAll versions
AmdRyzen 9 3900x FirmwareAll versions
AmdRyzen 9 3950x FirmwareAll versions
AmdRyzen 9 5900hs FirmwareAll versions
AmdRyzen 9 5900hx FirmwareAll versions
AmdRyzen 9 5980hs FirmwareAll versions
AmdRyzen 9 5980hx FirmwareAll versions
AmdRyzen 3 2300u FirmwareAll versions
AmdRyzen 3 3100 FirmwareAll versions
AmdRyzen Threadripper 2920x FirmwareAll versions
AmdRyzen Threadripper 2950x FirmwareAll versions
AmdRyzen Threadripper 2970wx FirmwareAll versions
AmdRyzen Threadripper 2990wx FirmwareAll versions
AmdRyzen Threadripper 3960x FirmwareAll versions
AmdRyzen Threadripper 3970x FirmwareAll versions
AmdRyzen Threadripper 3990x FirmwareAll versions
AmdRyzen Threadripper Pro 3945wx FirmwareAll versions
AmdRyzen Threadripper Pro 3955wx FirmwareAll versions
AmdRyzen Threadripper Pro 3975wx FirmwareAll versions
AmdRyzen Threadripper Pro 3995wx FirmwareAll versions
AmdRyzen Threadripper Pro 5945wx FirmwareAll versions
AmdRyzen Threadripper Pro 5955wx FirmwareAll versions
AmdRyzen Threadripper Pro 5965wx FirmwareAll versions
AmdRyzen Threadripper Pro 5975wx FirmwareAll versions
AmdRyzen Threadripper Pro 5995wx FirmwareAll versions
AmdRyzen 3 3300g FirmwareAll versions
AmdRyzen 7 2700 FirmwareAll versions
AmdRyzen 7 2700u FirmwareAll versions
AmdRyzen 7 2700x FirmwareAll versions
AmdRyzen 7 2800h FirmwareAll versions
AmdRyzen 7 3700x FirmwareAll versions
AmdRyzen 7 3800x FirmwareAll versions
AmdRyzen 7 5800h FirmwareAll versions
AmdRyzen 7 5800hs FirmwareAll versions
AmdRyzen 7 5800u FirmwareAll versions

Showing 50 of 74 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-26317?
Failure to verify the protocol in SMM may allow an attacker to control the protocol and modify SPI flash resulting in a potential arbitrary code execution.
How severe is CVE-2021-26317?
CVE-2021-26317 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.27% probability of exploitation in the next 30 days.
How do I fix CVE-2021-26317?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

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Source: NVD / NIST