CVE-2023-20596 — CRITICAL (9.8)

Q: What is CVE-2023-20596?

CVE-2023-20596 is a vulnerability with a CVSS score of 9.8 (CRITICAL). Improper input validation in the SMM Supervisor may allow an attacker with a compromised SMI handler to gain Ring0 access potentially leading to arbitrary code execution.

Q: How severe is CVE-2023-20596?

CVE-2023-20596 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Q: Is there a patch for CVE-2023-20596?

Check the references section above for vendor advisories and patch information. Affected products include: Amd Ryzen 7 5700G Firmware, Amd Ryzen 7 5700G, Amd Ryzen 7 5700Ge Firmware, Amd Ryzen 7 5700Ge, Amd Ryzen 5 5600G Firmware.

Vulnerability Description

Improper input validation in the SMM Supervisor may allow an attacker with a compromised SMI handler to gain Ring0 access potentially leading to arbitrary code execution.

CVSS Score

9.8

CRITICAL

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Amd	Ryzen 7 5700G Firmware	< comboam4v2_1.2.0.b
Amd	Ryzen 7 5700G	-
Amd	Ryzen 7 5700Ge Firmware	< comboam4v2_1.2.0.b
Amd	Ryzen 7 5700Ge	-
Amd	Ryzen 5 5600G Firmware	< comboam4v2_1.2.0.b
Amd	Ryzen 5 5600G	-
Amd	Ryzen 5 5600Ge Firmware	< comboam4v2_1.2.0.b
Amd	Ryzen 5 5600Ge	-
Amd	Ryzen 3 5300G Firmware	< comboam4v2_1.2.0.b
Amd	Ryzen 3 5300G	-
Amd	Ryzen 3 5300Ge Firmware	< comboam4v2_1.2.0.b
Amd	Ryzen 3 5300Ge	-
Amd	Ryzen 9 7950X3D Firmware	< comboam5pi_1.0.8.0
Amd	Ryzen 9 7950X3D	-
Amd	Ryzen 9 7950X Firmware	< comboam5pi_1.0.8.0
Amd	Ryzen 9 7950X	-
Amd	Ryzen 9 7900X3D Firmware	< comboam5pi_1.0.8.0
Amd	Ryzen 9 7900X3D	-
Amd	Ryzen 9 7900 Firmware	< comboam5pi_1.0.8.0
Amd	Ryzen 9 7900	-

References

https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-7011Vendor Advisory
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-7011Vendor Advisory

FAQ

What is CVE-2023-20596?

CVE-2023-20596 is a vulnerability with a CVSS score of 9.8 (CRITICAL). Improper input validation in the SMM Supervisor may allow an attacker with a compromised SMI handler to gain Ring0 access potentially leading to arbitrary code execution.

How severe is CVE-2023-20596?

CVE-2023-20596 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2023-20596?

Check the references section above for vendor advisories and patch information. Affected products include: Amd Ryzen 7 5700G Firmware, Amd Ryzen 7 5700G, Amd Ryzen 7 5700Ge Firmware, Amd Ryzen 7 5700Ge, Amd Ryzen 5 5600G Firmware.