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HIGH · 8.8

CVE-2023-20559

Insufficient control flow management in AmdCpmGpioInitSmm may allow a privileged attacker to tamper with the SMM handler potentially leading to escalation of privileges.

Vulnerability Description

Insufficient control flow management in AmdCpmGpioInitSmm may allow a privileged attacker to tamper with the SMM handler potentially leading to escalation of privileges.

CVSS Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
AmdRyzen 7 5700G Firmware< comboam4_v2_pi_1.2.0.6c
AmdRyzen 7 5700G-
AmdRyzen 7 5700Ge Firmware< comboam4_v2_pi_1.2.0.6c
AmdRyzen 7 5700Ge-
AmdRyzen 5 5600G Firmware< comboam4_v2_pi_1.2.0.6c
AmdRyzen 5 5600G-
AmdRyzen 5 5600Ge Firmware< comboam4_v2_pi_1.2.0.6c
AmdRyzen 5 5600Ge-
AmdRyzen 3 5300G Firmware< comboam4_v2_pi_1.2.0.6c
AmdRyzen 3 5300G-
AmdRyzen 3 5300Ge Firmware< comboam4_v2_pi_1.2.0.6c
AmdRyzen 3 5300Ge-
AmdRyzen 9 5980Hx Firmware< cezannepi-fp6_1.0.0.9
AmdRyzen 9 5980Hx-
AmdRyzen 9 5980Hs Firmware< cezannepi-fp6_1.0.0.9
AmdRyzen 9 5980Hs-
AmdRyzen 7 5825U Firmware< cezannepi-fp6_1.0.0.9
AmdRyzen 7 5825U-
AmdRyzen 9 5900Hx Firmware< cezannepi-fp6_1.0.0.9
AmdRyzen 9 5900Hx-

Related Weaknesses (CWE)

CWE-691

References

FAQ

What is CVE-2023-20559?

CVE-2023-20559 is a vulnerability with a CVSS score of 8.8 (HIGH). Insufficient control flow management in AmdCpmGpioInitSmm may allow a privileged attacker to tamper with the SMM handler potentially leading to escalation of privileges.

How severe is CVE-2023-20559?

CVE-2023-20559 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2023-20559?

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.