CVE-2021-46778

Execution unit scheduler contention may lead to a side channel vulnerability found on AMD CPU microarchitectures codenamed Zen 1, Zen 2 and Zen 3 that use simultaneous multithreading (SMT). By measuring the contention level on scheduler queues an attacker may potentially leak sensitive information.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.6 MEDIUM
LOCAL
HIGH
LOW
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
AMDCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 27%
VendorProductVersion
amdathlon_3050ge_firmware
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amdathlon_3150g_firmware
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amdathlon_3150ge_firmware
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amdepyc_7001_firmware
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amdepyc_7002_firmware
-
amdepyc_7003_firmware
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amdepyc_7232p_firmware
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amdepyc_7251_firmware
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amdepyc_7252_firmware
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amdepyc_7261_firmware
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amdepyc_7262_firmware
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amdepyc_7272_firmware
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amdepyc_7281_firmware
-
amdepyc_7282_firmware
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amdepyc_72f3_firmware
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amdepyc_7301_firmware
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amdepyc_7302_firmware
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amdepyc_7302p_firmware
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amdepyc_7313_firmware
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amdepyc_7313p_firmware
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amdepyc_7343_firmware
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amdepyc_7351_firmware
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amdepyc_7351p_firmware
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amdepyc_7352_firmware
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amdepyc_7371_firmware
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amdepyc_7373x_firmware
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amdepyc_73f3_firmware
-
amdepyc_7401_firmware
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amdepyc_7401p_firmware
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amdepyc_7402_firmware
-
amdepyc_7402p_firmware
-
amdepyc_7413_firmware
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amdepyc_7443_firmware
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amdepyc_7443p_firmware
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amdepyc_7451_firmware
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amdepyc_7452_firmware
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amdepyc_7453_firmware
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amdepyc_7473x_firmware
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amdepyc_74f3_firmware
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amdepyc_7501_firmware
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amdepyc_7502_firmware
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amdepyc_7502p_firmware
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amdepyc_7513_firmware
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amdepyc_7532_firmware
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amdepyc_7542_firmware
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amdepyc_7543_firmware
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amdepyc_7543p_firmware
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amdepyc_7551_firmware
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amdepyc_7551p_firmware
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amdepyc_7552_firmware
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amdepyc_7573x_firmware
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amdepyc_75f3_firmware
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amdepyc_7601_firmware
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amdepyc_7642_firmware
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amdepyc_7643_firmware
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amdepyc_7662_firmware
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amdepyc_7663_firmware
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amdepyc_7702_firmware
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amdepyc_7702p_firmware
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amdepyc_7713_firmware
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amdepyc_7713p_firmware
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amdepyc_7742_firmware
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amdepyc_7763_firmware
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amdepyc_7773x_firmware
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amdepyc_7f32_firmware
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amdepyc_7f52_firmware
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amdepyc_7f72_firmware
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amdepyc_7h12_firmware
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amdryzen_3_2200u_firmware
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amdryzen_3_2300u_firmware
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amdryzen_3_3100_firmware
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amdryzen_3_3200u_firmware
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amdryzen_3_3250u_firmware
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amdryzen_3_3300g_firmware
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amdryzen_3_3300u_firmware
-
amdryzen_3_3300x_firmware
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amdryzen_3_3350u_firmware
-
amdryzen_3_3450u_firmware
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amdryzen_3_3500c_firmware
-
amdryzen_3_3500u_firmware
-
amdryzen_3_3550h_firmware
-
amdryzen_3_3580u_firmware
-
amdryzen_3_3700c_firmware
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amdryzen_3_3700u_firmware
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amdryzen_3_3750h_firmware
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amdryzen_3_3780u_firmware
-
amdryzen_3_4300g_firmware
-
amdryzen_3_4300ge_firmware
-
amdryzen_3_4300u_firmware
-
amdryzen_3_5125c_firmware
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amdryzen_3_5300g_firmware
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amdryzen_3_5300ge_firmware
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amdryzen_3_5300u_firmware
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amdryzen_3_5400u_firmware
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amdryzen_3_5425c_firmware
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amdryzen_3_5425u_firmware
-
amdryzen_5_2500u_firmware
-
amdryzen_5_2600_firmware
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amdryzen_5_2600h_firmware
-
amdryzen_5_2600x_firmware
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amdryzen_5_2700x_firmware
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amdryzen_5_3400g_firmware
-
amdryzen_5_3450g_firmware
-
amdryzen_5_3500u_firmware
-
amdryzen_5_3550h_firmware
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amdryzen_5_3580u_firmware
-
amdryzen_5_3600_firmware
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amdryzen_5_3600x_firmware
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amdryzen_5_3600xt_firmware
-
amdryzen_5_4500u_firmware
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amdryzen_5_4600g_firmware
-
amdryzen_5_4600ge_firmware
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amdryzen_5_4600h_firmware
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amdryzen_5_4600u_firmware
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amdryzen_5_5500u_firmware
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amdryzen_5_5560u_firmware
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amdryzen_5_5600g_firmware
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amdryzen_5_5600ge_firmware
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amdryzen_5_5600h_firmware
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amdryzen_5_5600hs_firmware
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amdryzen_5_5600u_firmware
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amdryzen_5_5600x_firmware
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amdryzen_5_5625c_firmware
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amdryzen_5_5625u_firmware
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amdryzen_5_5700g_firmware
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amdryzen_5_5700ge_firmware
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amdryzen_7_2700_firmware
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amdryzen_7_2700u_firmware
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amdryzen_7_2700x_firmware
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amdryzen_7_2800h_firmware
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amdryzen_7_3700u_firmware
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amdryzen_7_3700x_firmware
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amdryzen_7_3750h_firmware
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amdryzen_7_3780u_firmware
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amdryzen_7_3800x_firmware
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amdryzen_7_3800xt_firmware
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amdryzen_7_4700g_firmware
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amdryzen_7_4700ge_firmware
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amdryzen_7_4700u_firmware
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amdryzen_7_4800h_firmware
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amdryzen_7_4800u_firmware
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amdryzen_7_5700g_firmware
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amdryzen_7_5700ge_firmware
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amdryzen_7_5700u_firmware
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amdryzen_7_5700x_firmware
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amdryzen_7_5800h_firmware
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amdryzen_7_5800hs_firmware
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amdryzen_7_5800u_firmware
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amdryzen_7_5800x_firmware
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amdryzen_7_5800x3d_firmware
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amdryzen_7_5825c_firmware
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amdryzen_7_5825u_firmware
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amdryzen_9_3900x_firmware
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amdryzen_9_3950x_firmware
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amdryzen_9_4900h_firmware
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amdryzen_9_4900hs_firmware
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amdryzen_9_5900hs_firmware
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amdryzen_9_5900hx_firmware
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amdryzen_9_5900x_firmware
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amdryzen_9_5950x_firmware
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amdryzen_9_5980hs_firmware
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amdryzen_9_5980hx_firmware
-
amdryzen_threadripper_2920x_firmware
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amdryzen_threadripper_2950x_firmware
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amdryzen_threadripper_2970wx_firmware
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amdryzen_threadripper_2990wx_firmware
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amdryzen_threadripper_3960x_firmware
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amdryzen_threadripper_3970x_firmware
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amdryzen_threadripper_3990x_firmware
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amdryzen_threadripper_pro_3795wx_firmware
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amdryzen_threadripper_pro_3945wx_firmware
-
amdryzen_threadripper_pro_3955wx_firmware
-
amdryzen_threadripper_pro_3975wx_firmware
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amdryzen_threadripper_pro_3995wx_firmware
-
amdryzen_threadripper_pro_5945wx_firmware
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amdryzen_threadripper_pro_5955wx_firmware
-
amdryzen_threadripper_pro_5965wx_firmware
-
amdryzen_threadripper_pro_5975wx_firmware
-
amdryzen_threadripper_pro_5995wx_firmware
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𝑥
= Vulnerable software versions