Strix
26.1K

CVE-2023-20555

HIGHCVSS 7.8/10EPSS 0.30%

Last modified

CVE-2023-20555 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Insufficient input validation in CpmDisplayFeatureSmm may allow an attacker to corrupt SMM memory by overwriting an arbitrary bit in an attacker-controlled pointer potentially leading to arbitrary code execution in SMM. . EPSS estimates a 0.30% chance of exploitation in the next 30 days.

Description

Insufficient input validation in CpmDisplayFeatureSmm may allow an attacker to corrupt SMM memory by overwriting an arbitrary bit in an attacker-controlled pointer potentially leading to arbitrary code execution in SMM.

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
0.30%

21.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
AmdRyzen 3 3300 Firmware< comboam4_pi_v1_1.0.0.a
AmdRyzen 3 3300x Firmware< comboam4_pi_v1_1.0.0.a
AmdRyzen 5 3600 Firmware< comboam4_pi_v1_1.0.0.a
AmdRyzen 5 3600x Firmware< comboam4_pi_v1_1.0.0.a
AmdRyzen 7 3700 Firmware< comboam4_pi_v1_1.0.0.a
AmdRyzen 7 3700x Firmware< comboam4_pi_v1_1.0.0.a
AmdRyzen 9 3800x Firmware< comboam4_pi_v1_1.0.0.a
AmdRyzen 9 3850x Firmware< comboam4_pi_v1_1.0.0.a
AmdRyzen 3 3300 Firmware< comboam4v2_pi_1.2.0.a
AmdRyzen 3 3300x Firmware< comboam4v2_pi_1.2.0.a
AmdRyzen 5 3600 Firmware< comboam4v2_pi_1.2.0.a
AmdRyzen 5 3600x Firmware< comboam4v2_pi_1.2.0.a
AmdRyzen 7 3700 Firmware< comboam4v2_pi_1.2.0.a
AmdRyzen 7 3700x Firmware< comboam4v2_pi_1.2.0.a
AmdRyzen 9 3800x Firmware< comboam4v2_pi_1.2.0.a
AmdRyzen 9 3850x Firmware< comboam4v2_pi_1.2.0.a
AmdRyzen 9 5950x Firmware< comboam4_v2_pi_1.2.0.a
AmdRyzen 9 5900x Firmware< comboam4_v2_pi_1.2.0.a
AmdRyzen 9 5900 Firmware< comboam4_v2_pi_1.2.0.a
AmdRyzen 9 Pro 5945 Firmware< comboam4_v2_pi_1.2.0.a
AmdRyzen 7 5800x3d Firmware< comboam4_v2_pi_1.2.0.a
AmdRyzen 7 5800x Firmware< comboam4_v2_pi_1.2.0.a
AmdRyzen 7 5800 Firmware< comboam4_v2_pi_1.2.0.a
AmdRyzen 7 5700x Firmware< comboam4_v2_pi_1.2.0.a
AmdRyzen 7 Pro 5845 Firmware< comboam4_v2_pi_1.2.0.a
AmdRyzen 5 5600x3d Firmware< comboam4_v2_pi_1.2.0.a
AmdRyzen 5 5600x Firmware< comboam4_v2_pi_1.2.0.a
AmdRyzen 5 5600 Firmware< comboam4_v2_pi_1.2.0.a
AmdRyzen 5 Pro 5645 Firmware< comboam4_v2_pi_1.2.0.a
AmdRyzen 7 5700 Firmware< comboam4v2_pi_1.2.0.a
AmdRyzen 5 5500 Firmware< comboam4v2_pi_1.2.0.a
AmdRyzen 3 5100 Firmware< comboam4v2_pi_1.2.0.a
AmdRyzen 7 5700g Firmware< comboam4v2_pi_1.2.0.a
AmdRyzen 7 5700ge Firmware< comboam4v2_pi_1.2.0.a
AmdRyzen 5 5600g Firmware< comboam4v2_pi_1.2.0.a
AmdRyzen 5 5600ge Firmware< comboam4v2_pi_1.2.0.a
AmdRyzen 3 5300g Firmware< comboam4v2_pi_1.2.0.a
AmdRyzen 3 5300ge Firmware< comboam4v2_pi_1.2.0.a
AmdRyzen 9 7950x3d Firmware< comboam5_1.0.0.6
AmdRyzen 9 7950x Firmware< comboam5_1.0.0.6
AmdRyzen 9 7900x3d Firmware< comboam5_1.0.0.6
AmdRyzen 9 7900x Firmware< comboam5_1.0.0.6
AmdRyzen 9 7900 Firmware< comboam5_1.0.0.6
AmdRyzen 9 Pro 7945 Firmware< comboam5_1.0.0.6
AmdRyzen 7 7800x3d Firmware< comboam5_1.0.0.6
AmdRyzen 7 7700x Firmware< comboam5_1.0.0.6
AmdRyzen 7 7700 Firmware< comboam5_1.0.0.6
AmdRyzen 7 Pro 7745 Firmware< comboam5_1.0.0.6
AmdRyzen 5 7600x Firmware< comboam5_1.0.0.6
AmdRyzen 5 7600 Firmware< comboam5_1.0.0.6

Showing 50 of 132 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2023-20555?
Insufficient input validation in CpmDisplayFeatureSmm may allow an attacker to corrupt SMM memory by overwriting an arbitrary bit in an attacker-controlled pointer potentially leading to arbitrary code execution in SMM.
How severe is CVE-2023-20555?
CVE-2023-20555 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.30% probability of exploitation in the next 30 days.
How do I fix CVE-2023-20555?
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-2023-20555?

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

Scan your code now

Source: NVD / NIST