High severity8.8NVD Advisory· Published Apr 2, 2023· Updated Jun 17, 2026

CVE-2023-20559

Description

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

Affected products

AMD/Athlon Gold 3150u Firmware
cpe:2.3:o:amd:athlon_gold_3150u_firmware:-:*:*:*:*:*:*:*
AMD/Athlon Silver 3050u Firmware
cpe:2.3:o:amd:athlon_silver_3050u_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 3 2200u Firmware
cpe:2.3:o:amd:ryzen_3_2200u_firmware:*:*:*:*:*:*:*:*
Range: <comboam4v2_pi_1.2.0.6c
AMD/Ryzen 3 2300u Firmware
cpe:2.3:o:amd:ryzen_3_2300u_firmware:*:*:*:*:*:*:*:*
Range: <comboam4v2_pi_1.2.0.6c
AMD/Ryzen 3 3200u Firmware2 versions
cpe:2.3:o:amd:ryzen_3_3200u_firmware:-:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:amd:ryzen_3_3200u_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_3_3300u_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 3 3250u Firmware2 versions
cpe:2.3:o:amd:ryzen_3_3250u_firmware:-:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:amd:ryzen_3_3250u_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_7_3800xt_firmware:*:*:*:*:*:*:*:*range: <comboam4_v2_pi_1.2.0.6c
AMD/Ryzen 3 3300x Firmware
cpe:2.3:o:amd:ryzen_3_3300x_firmware:*:*:*:*:*:*:*:*
Range: <comboam4_v2_pi_1.2.0.6c
AMD/Ryzen 3 3350u Firmware
cpe:2.3:o:amd:ryzen_3_3350u_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 3 3450u Firmware
cpe:2.3:o:amd:ryzen_3_3450u_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 3 3500c Firmware
cpe:2.3:o:amd:ryzen_3_3500c_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 3 3500u Firmware
cpe:2.3:o:amd:ryzen_3_3500u_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 3 3550h Firmware
cpe:2.3:o:amd:ryzen_3_3550h_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 3 3580u Firmware
cpe:2.3:o:amd:ryzen_3_3580u_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 3 3700c Firmware
cpe:2.3:o:amd:ryzen_3_3700c_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 3 3700u Firmware
cpe:2.3:o:amd:ryzen_3_3700u_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 3 3750h Firmware
cpe:2.3:o:amd:ryzen_3_3750h_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 3 3780u Firmware
cpe:2.3:o:amd:ryzen_3_3780u_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 3 4300g Firmware
cpe:2.3:o:amd:ryzen_3_4300g_firmware:*:*:*:*:*:*:*:*
Range: <renoirpi-fp6_1.0.0.7
AMD/Ryzen 3 4300ge Firmware
cpe:2.3:o:amd:ryzen_3_4300ge_firmware:*:*:*:*:*:*:*:*
Range: <renoirpi-fp6_1.0.0.7
AMD/Ryzen 3 5125c Firmware
cpe:2.3:o:amd:ryzen_3_5125c_firmware:*:*:*:*:*:*:*:*
Range: <cezannepi-fp6_1.0.0.9
AMD/Ryzen 3 5300g Firmware
cpe:2.3:o:amd:ryzen_3_5300g_firmware:*:*:*:*:*:*:*:*
Range: <comboam4_v2_pi_1.2.0.6c
AMD/Ryzen 3 5300ge Firmware
cpe:2.3:o:amd:ryzen_3_5300ge_firmware:*:*:*:*:*:*:*:*
Range: <comboam4_v2_pi_1.2.0.6c
AMD/Ryzen 3 5400u Firmware
cpe:2.3:o:amd:ryzen_3_5400u_firmware:*:*:*:*:*:*:*:*
Range: <cezannepi-fp6_1.0.0.9
AMD/Ryzen 3 5425c Firmware
cpe:2.3:o:amd:ryzen_3_5425c_firmware:*:*:*:*:*:*:*:*
Range: <cezannepi-fp6_1.0.0.9
AMD/Ryzen 3 5425u Firmware2 versions
cpe:2.3:o:amd:ryzen_3_5425u_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:amd:ryzen_3_5425u_firmware:*:*:*:*:*:*:*:*range: <cezannepi-fp6_1.0.0.9
- cpe:2.3:o:amd:ryzen_5_2500u_firmware:*:*:*:*:*:*:*:*range: <comboam4v2_pi_1.2.0.6c
AMD/Ryzen 9 5980hs Firmware2 versions
cpe:2.3:o:amd:ryzen_5_2600_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:amd:ryzen_5_2600_firmware:*:*:*:*:*:*:*:*range: <comboam4v2_pi_1.2.0.6c
- cpe:2.3:o:amd:ryzen_9_5980hs_firmware:*:*:*:*:*:*:*:*range: <cezannepi-fp6_1.0.0.9
AMD/Ryzen 5 2600h Firmware
cpe:2.3:o:amd:ryzen_5_2600h_firmware:*:*:*:*:*:*:*:*
Range: <comboam4v2_pi_1.2.0.6c
AMD/Ryzen 5 2600x Firmware
cpe:2.3:o:amd:ryzen_5_2600x_firmware:*:*:*:*:*:*:*:*
Range: <comboam4v2_pi_1.2.0.6c
AMD/Ryzen 5 2700 Firmware
cpe:2.3:o:amd:ryzen_5_2700_firmware:*:*:*:*:*:*:*:*
Range: <comboam4v2_pi_1.2.0.6c
AMD/Ryzen 5 2700x Firmware
cpe:2.3:o:amd:ryzen_5_2700x_firmware:*:*:*:*:*:*:*:*
Range: <comboam4v2_pi_1.2.0.6c
AMD/Ryzen 5 3500 Firmware
cpe:2.3:o:amd:ryzen_5_3500_firmware:*:*:*:*:*:*:*:*
Range: <comboam4_v2_pi_1.2.0.6c
AMD/Ryzen 5 3500x Firmware
cpe:2.3:o:amd:ryzen_5_3500x_firmware:*:*:*:*:*:*:*:*
Range: <comboam4_v2_pi_1.2.0.6c
AMD/Ryzen 5 3600 Firmware
cpe:2.3:o:amd:ryzen_5_3600_firmware:*:*:*:*:*:*:*:*
Range: <comboam4_v2_pi_1.2.0.6c
AMD/Ryzen 5 3600x Firmware
cpe:2.3:o:amd:ryzen_5_3600x_firmware:*:*:*:*:*:*:*:*
Range: <comboam4_v2_pi_1.2.0.6c
AMD/Ryzen 5 3600xt Firmware
cpe:2.3:o:amd:ryzen_5_3600xt_firmware:*:*:*:*:*:*:*:*
Range: <comboam4_v2_pi_1.2.0.6c
AMD/Ryzen 5 4600g Firmware
cpe:2.3:o:amd:ryzen_5_4600g_firmware:*:*:*:*:*:*:*:*
Range: <renoirpi-fp6_1.0.0.7
AMD/Ryzen 5 4600ge Firmware
cpe:2.3:o:amd:ryzen_5_4600ge_firmware:*:*:*:*:*:*:*:*
Range: <renoirpi-fp6_1.0.0.7
AMD/Ryzen 5 5560u Firmware
cpe:2.3:o:amd:ryzen_5_5560u_firmware:*:*:*:*:*:*:*:*
Range: <cezannepi-fp6_1.0.0.9
AMD/Ryzen 5 5600g Firmware
cpe:2.3:o:amd:ryzen_5_5600g_firmware:*:*:*:*:*:*:*:*
Range: <comboam4_v2_pi_1.2.0.6c
AMD/Ryzen 5 5600ge Firmware
cpe:2.3:o:amd:ryzen_5_5600ge_firmware:*:*:*:*:*:*:*:*
Range: <comboam4_v2_pi_1.2.0.6c
AMD/Ryzen 5 5600h Firmware
cpe:2.3:o:amd:ryzen_5_5600h_firmware:*:*:*:*:*:*:*:*
Range: <cezannepi-fp6_1.0.0.9
AMD/Ryzen 5 5600hs Firmware
cpe:2.3:o:amd:ryzen_5_5600hs_firmware:*:*:*:*:*:*:*:*
Range: <cezannepi-fp6_1.0.0.9
AMD/Ryzen 5 5600u Firmware
cpe:2.3:o:amd:ryzen_5_5600u_firmware:*:*:*:*:*:*:*:*
Range: <cezannepi-fp6_1.0.0.9
AMD/Ryzen 5 5625c Firmware
cpe:2.3:o:amd:ryzen_5_5625c_firmware:*:*:*:*:*:*:*:*
Range: <cezannepi-fp6_1.0.0.9
AMD/Ryzen 5 5625u Firmware
cpe:2.3:o:amd:ryzen_5_5625u_firmware:*:*:*:*:*:*:*:*
Range: <cezannepi-fp6_1.0.0.9
AMD/Ryzen 7 2700 Firmware
cpe:2.3:o:amd:ryzen_7_2700_firmware:*:*:*:*:*:*:*:*
Range: <comboam4v2_pi_1.2.0.6c
AMD/Ryzen 7 Pro 3700u Firmware
cpe:2.3:o:amd:ryzen_7_2700u_firmware:*:*:*:*:*:*:*:*
Range: <comboam4v2_pi_1.2.0.6c
AMD/Ryzen 7 2700x Firmware
cpe:2.3:o:amd:ryzen_7_2700x_firmware:*:*:*:*:*:*:*:*
Range: <comboam4v2_pi_1.2.0.6c
AMD/Ryzen 7 2800h Firmware
cpe:2.3:o:amd:ryzen_7_2800h_firmware:*:*:*:*:*:*:*:*
Range: <comboam4v2_pi_1.2.0.6c
AMD/Ryzen 7 3700x Firmware
cpe:2.3:o:amd:ryzen_7_3700x_firmware:*:*:*:*:*:*:*:*
Range: <comboam4_v2_pi_1.2.0.6c
AMD/Ryzen 7 3800x Firmware
cpe:2.3:o:amd:ryzen_7_3800x_firmware:*:*:*:*:*:*:*:*
Range: <comboam4_v2_pi_1.2.0.6c
AMD/Ryzen 7 4700g Firmware
cpe:2.3:o:amd:ryzen_7_4700g_firmware:*:*:*:*:*:*:*:*
Range: <renoirpi-fp6_1.0.0.7
AMD/Ryzen 7 4700ge Firmware
cpe:2.3:o:amd:ryzen_7_4700ge_firmware:*:*:*:*:*:*:*:*
Range: <renoirpi-fp6_1.0.0.7
AMD/Ryzen 7 5700g Firmware
cpe:2.3:o:amd:ryzen_7_5700g_firmware:*:*:*:*:*:*:*:*
Range: <comboam4_v2_pi_1.2.0.6c
AMD/Ryzen 7 5700ge Firmware
cpe:2.3:o:amd:ryzen_7_5700ge_firmware:*:*:*:*:*:*:*:*
Range: <comboam4_v2_pi_1.2.0.6c
AMD/Ryzen 7 5800h Firmware
cpe:2.3:o:amd:ryzen_7_5800h_firmware:*:*:*:*:*:*:*:*
Range: <cezannepi-fp6_1.0.0.9
AMD/Ryzen 7 5800hs Firmware
cpe:2.3:o:amd:ryzen_7_5800hs_firmware:*:*:*:*:*:*:*:*
Range: <cezannepi-fp6_1.0.0.9
AMD/Ryzen 7 5800u Firmware
cpe:2.3:o:amd:ryzen_7_5800u_firmware:*:*:*:*:*:*:*:*
Range: <cezannepi-fp6_1.0.0.9
AMD/Ryzen 7 5825c Firmware
cpe:2.3:o:amd:ryzen_7_5825c_firmware:*:*:*:*:*:*:*:*
Range: <cezannepi-fp6_1.0.0.9
AMD/Ryzen 7 5825u Firmware
cpe:2.3:o:amd:ryzen_7_5825u_firmware:*:*:*:*:*:*:*:*
Range: <cezannepi-fp6_1.0.0.9
AMD/Ryzen 9 3900 Firmware
cpe:2.3:o:amd:ryzen_9_3900_firmware:*:*:*:*:*:*:*:*
Range: <comboam4_v2_pi_1.2.0.6c
AMD/Ryzen 9 3900x Firmware
cpe:2.3:o:amd:ryzen_9_3900x_firmware:*:*:*:*:*:*:*:*
Range: <comboam4_v2_pi_1.2.0.6c
AMD/Ryzen 9 3900xt Firmware
cpe:2.3:o:amd:ryzen_9_3900xt_firmware:*:*:*:*:*:*:*:*
Range: <comboam4_v2_pi_1.2.0.6c
AMD/Ryzen 9 3950x Firmware
cpe:2.3:o:amd:ryzen_9_3950x_firmware:*:*:*:*:*:*:*:*
Range: <comboam4_v2_pi_1.2.0.6c
AMD/Ryzen 9 5900hs Firmware
cpe:2.3:o:amd:ryzen_9_5900hs_firmware:*:*:*:*:*:*:*:*
Range: <cezannepi-fp6_1.0.0.9
AMD/Ryzen 9 5900hx Firmware
cpe:2.3:o:amd:ryzen_9_5900hx_firmware:*:*:*:*:*:*:*:*
Range: <cezannepi-fp6_1.0.0.9
AMD/Ryzen 9 5980hx Firmware
cpe:2.3:o:amd:ryzen_9_5980hx_firmware:*:*:*:*:*:*:*:*
Range: <cezannepi-fp6_1.0.0.9
AMD/Ryzen 9 Pro 3900 Firmware
cpe:2.3:o:amd:ryzen_9_pro_3900_firmware:*:*:*:*:*:*:*:*
Range: <comboam4_v2_pi_1.2.0.6c
AMD/Ryzen Threadripper 2920x Firmware2 versions
cpe:2.3:o:amd:ryzen_threadripper_2920x_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:amd:ryzen_threadripper_2920x_firmware:*:*:*:*:*:*:*:*range: <summitpi-sp3r2_1.1.0.5
- cpe:2.3:o:amd:ryzen_threadripper_pro_5995wx_firmware:*:*:*:*:*:*:*:*range: <castlepeakwspi-swrx8_1.0.0.9
AMD/Ryzen Threadripper 2950x Firmware
cpe:2.3:o:amd:ryzen_threadripper_2950x_firmware:*:*:*:*:*:*:*:*
Range: <summitpi-sp3r2_1.1.0.5
AMD/Ryzen Threadripper 2970wx Firmware
cpe:2.3:o:amd:ryzen_threadripper_2970wx_firmware:*:*:*:*:*:*:*:*
Range: <summitpi-sp3r2_1.1.0.5
AMD/Ryzen Threadripper 2990wx Firmware
cpe:2.3:o:amd:ryzen_threadripper_2990wx_firmware:*:*:*:*:*:*:*:*
Range: <summitpi-sp3r2_1.1.0.5
AMD/Ryzen Threadripper 3960x Firmware
cpe:2.3:o:amd:ryzen_threadripper_3960x_firmware:*:*:*:*:*:*:*:*
Range: <castlepeakpi-sp3r3_1.0.0.6
AMD/Ryzen Threadripper 3970x Firmware
cpe:2.3:o:amd:ryzen_threadripper_3970x_firmware:*:*:*:*:*:*:*:*
Range: <castlepeakpi-sp3r3_1.0.0.6
AMD/Ryzen Threadripper 3990x Firmware
cpe:2.3:o:amd:ryzen_threadripper_3990x_firmware:*:*:*:*:*:*:*:*
Range: <castlepeakpi-sp3r3_1.0.0.6
AMD/Ryzen Threadripper Pro 3795wx Firmware
cpe:2.3:o:amd:ryzen_threadripper_pro_3795wx_firmware:*:*:*:*:*:*:*:*
Range: <castlepeakwspi-swrx8_1.0.0.9
AMD/Ryzen Threadripper Pro 3945wx Firmware
cpe:2.3:o:amd:ryzen_threadripper_pro_3945wx_firmware:*:*:*:*:*:*:*:*
Range: <castlepeakwspi-swrx8_1.0.0.9
AMD/Ryzen Threadripper Pro 3955wx Firmware
cpe:2.3:o:amd:ryzen_threadripper_pro_3955wx_firmware:*:*:*:*:*:*:*:*
Range: <castlepeakwspi-swrx8_1.0.0.9
AMD/Ryzen Threadripper Pro 3975wx Firmware
cpe:2.3:o:amd:ryzen_threadripper_pro_3975wx_firmware:*:*:*:*:*:*:*:*
Range: <castlepeakwspi-swrx8_1.0.0.9
AMD/Ryzen Threadripper Pro 3995wx Firmware
cpe:2.3:o:amd:ryzen_threadripper_pro_3995wx_firmware:*:*:*:*:*:*:*:*
Range: <castlepeakwspi-swrx8_1.0.0.9
AMD/Ryzen Threadripper Pro 5945wx Firmware
cpe:2.3:o:amd:ryzen_threadripper_pro_5945wx_firmware:*:*:*:*:*:*:*:*
Range: <castlepeakwspi-swrx8_1.0.0.9
AMD/Ryzen Threadripper Pro 5955wx Firmware
cpe:2.3:o:amd:ryzen_threadripper_pro_5955wx_firmware:*:*:*:*:*:*:*:*
Range: <castlepeakwspi-swrx8_1.0.0.9
AMD/Ryzen Threadripper Pro 5965wx Firmware
cpe:2.3:o:amd:ryzen_threadripper_pro_5965wx_firmware:*:*:*:*:*:*:*:*
Range: <castlepeakwspi-swrx8_1.0.0.9
AMD/Ryzen Threadripper Pro 5975wx Firmware
cpe:2.3:o:amd:ryzen_threadripper_pro_5975wx_firmware:*:*:*:*:*:*:*:*
Range: <castlepeakwspi-swrx8_1.0.0.9
AMD/AmdCpmGpioInitSmmllm-fuzzy
AMD/2nd Gen AMD Ryzen™ Threadripper™ Processorv5
Range: Various
AMD/3rd Gen AMD Ryzen™ Threadripper™ Processorsv5
Range: various
AMD/Ryzen™ 2000 Seriesv5
Range: various
AMD/Ryzen™ 3000 Seriesv5
Range: various
AMD/Ryzen™ 4000 Seriesv5
Range: various
AMD/Ryzen™ 5000 Seriesv5
Range: various
AMD/Ryzen™ Threadripper™ PRO Processorv5
Range: various

Patches

Vulnerability mechanics

References

www.amd.com/en/resources/product-security/bulletin/amd-sb-1027.htmlnvdVendor Advisory

News mentions

No linked articles in our index yet.

cvss	0.572
epss	0.001
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000