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CVE-2021-46758

MEDIUMCVSS 6.1/10EPSS 0.33%

Last modified

CVE-2021-46758 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. Insufficient validation of SPI flash addresses in the ASP (AMD Secure Processor) bootloader may allow an attacker to read data in memory mapped beyond SPI flash resulting in a potential loss of availability and integrity. . EPSS estimates a 0.33% chance of exploitation in the next 30 days.

Description

Insufficient validation of SPI flash addresses in the ASP (AMD Secure Processor) bootloader may allow an attacker to read data in memory mapped beyond SPI flash resulting in a potential loss of availability and integrity.

Metrics

CVSS 3.1
6.1/10

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

EPSS Probability
0.33%

24.2th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
AmdRyzen 7 5700g Firmware< comboam4v2_pi_1.2.0.8
AmdRyzen 7 5700ge Firmware< comboam4v2_pi_1.2.0.8
AmdRyzen 5 5600g Firmware< comboam4v2_pi_1.2.0.8
AmdRyzen 5 5600ge Firmware< comboam4v2_pi_1.2.0.8
AmdRyzen 3 5300g Firmware< comboam4v2_pi_1.2.0.8
AmdRyzen 3 5300ge Firmware< comboam4v2_pi_1.2.0.8
AmdRyzen 9 7950x3d Firmware< comboam5_1.0.0.1
AmdRyzen 9 7900x3d Firmware< comboam5_1.0.0.1
AmdRyzen 7 7800x3d Firmware< comboam5_1.0.0.1
AmdRyzen 9 4900h Firmware< renoirpi-fp6_1.0.0.a
AmdRyzen 9 4900hs Firmware< renoirpi-fp6_1.0.0.a
AmdRyzen 7 4800h Firmware< renoirpi-fp6_1.0.0.a
AmdRyzen 7 4800hs Firmware< renoirpi-fp6_1.0.0.a
AmdRyzen 7 4980u Firmware< renoirpi-fp6_1.0.0.a
AmdRyzen 7 4800u Firmware< renoirpi-fp6_1.0.0.a
AmdRyzen 7 4700u Firmware< renoirpi-fp6_1.0.0.a
AmdRyzen 5 4600h Firmware< renoirpi-fp6_1.0.0.a
AmdRyzen 5 4600hs Firmware< renoirpi-fp6_1.0.0.a
AmdRyzen 5 4680u Firmware< renoirpi-fp6_1.0.0.a
AmdRyzen 5 4600u Firmware< renoirpi-fp6_1.0.0.a
AmdRyzen 5 4500u Firmware< renoirpi-fp6_1.0.0.a
AmdRyzen 3 4300u Firmware< renoirpi-fp6_1.0.0.a
AmdRyzen 7 5700u Firmware< cezannepi-fp6_1.0.0.c
AmdRyzen 5 5500u Firmware< cezannepi-fp6_1.0.0.c
AmdRyzen 3 5300u Firmware< cezannepi-fp6_1.0.0.c
AmdRyzen 9 5980hx Firmware< cezannepi-fp6_1.0.0.c
AmdRyzen 9 5980hs Firmware< cezannepi-fp6_1.0.0.c
AmdRyzen 9 5900hx Firmware< cezannepi-fp6_1.0.0.c
AmdRyzen 9 5900hs Firmware< cezannepi-fp6_1.0.0.c
AmdRyzen 7 5800h Firmware< cezannepi-fp6_1.0.0.c
AmdRyzen 7 5800hs Firmware< cezannepi-fp6_1.0.0.c
AmdRyzen 7 5825u Firmware< cezannepi-fp6_1.0.0.c
AmdRyzen 7 5800u Firmware< cezannepi-fp6_1.0.0.c
AmdRyzen 5 5600h Firmware< cezannepi-fp6_1.0.0.c
AmdRyzen 5 5600hs Firmware< cezannepi-fp6_1.0.0.c
AmdRyzen 5 5625u Firmware< cezannepi-fp6_1.0.0.c
AmdRyzen 5 5600u Firmware< cezannepi-fp6_1.0.0.c
AmdRyzen 5 5560u Firmware< cezannepi-fp6_1.0.0.c
AmdRyzen 5 5500h Firmware< cezannepi-fp6_1.0.0.c
AmdRyzen 3 5425u Firmware< cezannepi-fp6_1.0.0.c
AmdRyzen 3 5400u Firmware< cezannepi-fp6_1.0.0.c
AmdRyzen 3 5125c Firmware< cezannepi-fp6_1.0.0.c
AmdRyzen 9 6980hx Firmware< rembrandtpi-fp7_1.0.0.5
AmdRyzen 9 6980hs Firmware< rembrandtpi-fp7_1.0.0.5
AmdRyzen 9 6900hx Firmware< rembrandtpi-fp7_1.0.0.5
AmdRyzen 9 6900hs Firmware< rembrandtpi-fp7_1.0.0.5
AmdRyzen 7 6800h Firmware< rembrandtpi-fp7_1.0.0.5
AmdRyzen 7 6800hs Firmware< rembrandtpi-fp7_1.0.0.5
AmdRyzen 7 6800u Firmware< rembrandtpi-fp7_1.0.0.5
AmdRyzen 5 6600h Firmware< rembrandtpi-fp7_1.0.0.5

Showing 50 of 61 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-46758?
Insufficient validation of SPI flash addresses in the ASP (AMD Secure Processor) bootloader may allow an attacker to read data in memory mapped beyond SPI flash resulting in a potential loss of availability and integrity.
How severe is CVE-2021-46758?
CVE-2021-46758 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.33% probability of exploitation in the next 30 days.
How do I fix CVE-2021-46758?
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-2021-46758?

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

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Source: NVD / NIST