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CVE-2021-46754

CRITICALCVSS 9.1/10EPSS 0.56%

Last modified

CVE-2021-46754 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. Insufficient input validation in the ASP (AMD Secure Processor) bootloader may allow an attacker with a compromised Uapp or ABL to coerce the bootloader into exposing sensitive information to the SMU (System Management Unit) resulting in a potential loss of confidentiality and integrity. . EPSS estimates a 0.56% chance of exploitation in the next 30 days.

Description

Insufficient input validation in the ASP (AMD Secure Processor) bootloader may allow an attacker with a compromised Uapp or ABL to coerce the bootloader into exposing sensitive information to the SMU (System Management Unit) resulting in a potential loss of confidentiality and integrity.

Metrics

CVSS 3.1
9.1/10

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

EPSS Probability
0.56%

42.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
AmdRyzen 5300g Firmwarecezannepi-fp6_1.0.0.6
AmdRyzen 5300ge Firmwarecezannepi-fp6_1.0.0.6
AmdRyzen 5500 Firmwarecezannepi-fp6_1.0.0.6
AmdRyzen 5600 Firmwarecezannepi-fp6_1.0.0.6
AmdRyzen 5600g Firmwarecezannepi-fp6_1.0.0.6
AmdRyzen 5600ge Firmwarecezannepi-fp6_1.0.0.6
AmdRyzen 5600x Firmwarecezannepi-fp6_1.0.0.6
AmdRyzen 5700g Firmwarecezannepi-fp6_1.0.0.6
AmdRyzen 5700ge Firmwarecezannepi-fp6_1.0.0.6
AmdRyzen 5700x Firmwarecezannepi-fp6_1.0.0.6
AmdRyzen 5800 Firmwarecezannepi-fp6_1.0.0.6
AmdRyzen 5800x3d Firmwarecezannepi-fp6_1.0.0.6
AmdRyzen 5800x Firmwarecezannepi-fp6_1.0.0.6
AmdRyzen 5900 Firmwarecezannepi-fp6_1.0.0.6
AmdRyzen 5900x Firmwarecezannepi-fp6_1.0.0.6
AmdRyzen 5945wx Firmwarecezannepi-fp6_1.0.0.6
AmdRyzen 5950x Firmwarecezannepi-fp6_1.0.0.6
AmdRyzen 5955wx Firmwarecezannepi-fp6_1.0.0.6
AmdRyzen 5965wx Firmwarecezannepi-fp6_1.0.0.6
AmdRyzen 5975wx Firmwarecezannepi-fp6_1.0.0.6
AmdRyzen 5995wx Firmwarecezannepi-fp6_1.0.0.6
AmdRyzen 3100 Firmwarecomboam4pi_1.0.0.9
AmdRyzen 3100 Firmwarecomboam4v2_pi_1.2.0.5
AmdRyzen 3100 Firmwarecomboam4v2_pi_1.2.0.8
AmdRyzen 3100 Firmwarepicassopi-fp5_1.0.0.e
AmdRyzen 3100 Firmwarerenoirpi-fp6_1.0.0.7
AmdRyzen 3300x Firmwarecomboam4pi_1.0.0.9
AmdRyzen 3300x Firmwarecomboam4v2_pi_1.2.0.5
AmdRyzen 3300x Firmwarecomboam4v2_pi_1.2.0.8
AmdRyzen 3300x Firmwarepicassopi-fp5_1.0.0.e
AmdRyzen 3300x Firmwarerenoirpi-fp6_1.0.0.7
AmdRyzen 3500 Firmwarecomboam4pi_1.0.0.9
AmdRyzen 3500 Firmwarecomboam4v2_pi_1.2.0.5
AmdRyzen 3500 Firmwarecomboam4v2_pi_1.2.0.8
AmdRyzen 3500 Firmwarepicassopi-fp5_1.0.0.e
AmdRyzen 3500 Firmwarerenoirpi-fp6_1.0.0.7
AmdRyzen 3500x Firmwarecomboam4pi_1.0.0.9
AmdRyzen 3500x Firmwarecomboam4v2_pi_1.2.0.5
AmdRyzen 3500x Firmwarecomboam4v2_pi_1.2.0.8
AmdRyzen 3500x Firmwarepicassopi-fp5_1.0.0.e
AmdRyzen 3500x Firmwarerenoirpi-fp6_1.0.0.7
AmdRyzen 3600 Firmwarecomboam4pi_1.0.0.9
AmdRyzen 3600 Firmwarecomboam4v2_pi_1.2.0.5
AmdRyzen 3600 Firmwarecomboam4v2_pi_1.2.0.8
AmdRyzen 3600 Firmwarepicassopi-fp5_1.0.0.e
AmdRyzen 3600 Firmwarerenoirpi-fp6_1.0.0.7
AmdRyzen 3600x Firmwarecomboam4pi_1.0.0.9
AmdRyzen 3600x Firmwarecomboam4v2_pi_1.2.0.5
AmdRyzen 3600x Firmwarecomboam4v2_pi_1.2.0.8
AmdRyzen 3600x Firmwarepicassopi-fp5_1.0.0.e

Showing 50 of 168 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-46754?
Insufficient input validation in the ASP (AMD Secure Processor) bootloader may allow an attacker with a compromised Uapp or ABL to coerce the bootloader into exposing sensitive information to the SMU (System Management Unit) resulting in a potential loss of confidentiality and integrity.
How severe is CVE-2021-46754?
CVE-2021-46754 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 0.56% probability of exploitation in the next 30 days.
How do I fix CVE-2021-46754?
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.

Are you affected by CVE-2021-46754?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST