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CVE-2021-26386

HIGHCVSS 7.8/10EPSS 0.26%

Last modified

CVE-2021-26386 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. A malicious or compromised UApp or ABL may be used by an attacker to issue a malformed system call to the Stage 2 Bootloader potentially leading to corrupt memory and code execution.. EPSS estimates a 0.26% chance of exploitation in the next 30 days.

Description

A malicious or compromised UApp or ABL may be used by an attacker to issue a malformed system call to the Stage 2 Bootloader potentially leading to corrupt memory and 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
0.26%

17.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
AmdRyzen 3 2200u FirmwareAll versions
AmdRyzen 3 2300u FirmwareAll versions
AmdRyzen 3 3100 FirmwareAll versions
AmdRyzen 3 3300g FirmwareAll versions
AmdRyzen 3 3300x FirmwareAll versions
AmdRyzen 3 5125c FirmwareAll versions
AmdRyzen 3 5400u FirmwareAll versions
AmdRyzen 3 5425c FirmwareAll versions
AmdRyzen 3 5425u 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
AmdRyzen 5800x FirmwareAll versions
AmdRyzen 5800x3d FirmwareAll versions
AmdRyzen 5900x FirmwareAll versions
AmdRyzen 5950x FirmwareAll versions
AmdRyzen 5 2500u FirmwareAll versions
AmdRyzen 5 2600 FirmwareAll versions
AmdRyzen 5 2600h FirmwareAll versions
AmdRyzen 5 2600x FirmwareAll versions
AmdRyzen 5 3400g FirmwareAll versions
AmdRyzen 5 3450g FirmwareAll versions
AmdRyzen 5 3600 FirmwareAll versions
AmdRyzen 5 3600x FirmwareAll versions
AmdRyzen 5 5560u FirmwareAll versions
AmdRyzen 5 5600h FirmwareAll versions
AmdRyzen 5 5600hs FirmwareAll versions
AmdRyzen 5 5600u FirmwareAll versions
AmdRyzen 5 5600x FirmwareAll versions
AmdRyzen 5 5625c FirmwareAll versions
AmdRyzen 5 5625u FirmwareAll versions
AmdRyzen 5 5700g FirmwareAll versions
AmdRyzen 5 5700ge 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
AmdRyzen 7 5825c FirmwareAll versions
AmdRyzen 7 5825u FirmwareAll versions
AmdRyzen 9 3900x FirmwareAll versions
AmdRyzen 9 3950x FirmwareAll versions

Showing 50 of 70 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-26386?
A malicious or compromised UApp or ABL may be used by an attacker to issue a malformed system call to the Stage 2 Bootloader potentially leading to corrupt memory and code execution.
How severe is CVE-2021-26386?
CVE-2021-26386 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.26% probability of exploitation in the next 30 days.
How do I fix CVE-2021-26386?
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