CVE-2021-46778

EPSS 0.13%
Published 10.08.2022 20:15:24
Last modified 21.11.2024 06:34:42
Source psirt@amd.com
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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.

Affected products Warnungen 0 Metrics 2 CWE 1 References 4

Data is provided by the National Vulnerability Database (NVD)

Amd ≫ Athlon 3050ge Firmware Version-

Amd ≫ Athlon 3050ge Version-

Amd ≫ Athlon 3150g Firmware Version-

Amd ≫ Athlon 3150g Version-

Amd ≫ Athlon 3150ge Firmware Version-

Amd ≫ Athlon 3150ge Version-

Amd ≫ Epyc 7001 Firmware Version-

Amd ≫ Epyc 7001 Version-

Amd ≫ Epyc 7002 Firmware Version-

Amd ≫ Epyc 7002 Version-

Amd ≫ Epyc 7003 Firmware Version-

Amd ≫ Epyc 7003 Version-

Amd ≫ Epyc 7232p Firmware Version-

Amd ≫ Epyc 7232p Version-

Amd ≫ Epyc 7251 Firmware Version-

Amd ≫ Epyc 7251 Version-

Amd ≫ Epyc 7252 Firmware Version-

Amd ≫ Epyc 7252 Version-

Amd ≫ Epyc 7261 Firmware Version-

Amd ≫ Epyc 7261 Version-

Amd ≫ Epyc 7262 Firmware Version-

Amd ≫ Epyc 7262 Version-

Amd ≫ Epyc 7272 Firmware Version-

Amd ≫ Epyc 7272 Version-

Amd ≫ Epyc 7281 Firmware Version-

Amd ≫ Epyc 7281 Version-

Amd ≫ Epyc 7282 Firmware Version-

Amd ≫ Epyc 7282 Version-

Amd ≫ Epyc 72f3 Firmware Version-

Amd ≫ Epyc 72f3 Version-

Amd ≫ Epyc 7301 Firmware Version-

Amd ≫ Epyc 7301 Version-

Amd ≫ Epyc 7302 Firmware Version-

Amd ≫ Epyc 7302 Version-

Amd ≫ Epyc 7302p Firmware Version-

Amd ≫ Epyc 7302p Version-

Amd ≫ Epyc 7313 Firmware Version-

Amd ≫ Epyc 7313 Version-

Amd ≫ Epyc 7313p Firmware Version-

Amd ≫ Epyc 7313p Version-

Amd ≫ Epyc 7343 Firmware Version-

Amd ≫ Epyc 7343 Version-

Amd ≫ Epyc 7351 Firmware Version-

Amd ≫ Epyc 7351 Version-

Amd ≫ Epyc 7351p Firmware Version-

Amd ≫ Epyc 7351p Version-

Amd ≫ Epyc 7352 Firmware Version-

Amd ≫ Epyc 7352 Version-

Amd ≫ Epyc 7371 Firmware Version-

Amd ≫ Epyc 7371 Version-

Amd ≫ Epyc 7373x Firmware Version-

Amd ≫ Epyc 7373x Version-

Amd ≫ Epyc 73f3 Firmware Version-

Amd ≫ Epyc 73f3 Version-

Amd ≫ Epyc 7401 Firmware Version-

Amd ≫ Epyc 7401 Version-

Amd ≫ Epyc 7401p Firmware Version-

Amd ≫ Epyc 7401p Version-

Amd ≫ Epyc 7402 Firmware Version-

Amd ≫ Epyc 7402 Version-

Amd ≫ Epyc 7402p Firmware Version-

Amd ≫ Epyc 7402p Version-

Amd ≫ Epyc 7413 Firmware Version-

Amd ≫ Epyc 7413 Version-

Amd ≫ Epyc 7443 Firmware Version-

Amd ≫ Epyc 7443 Version-

Amd ≫ Epyc 7443p Firmware Version-

Amd ≫ Epyc 7443p Version-

Amd ≫ Epyc 7451 Firmware Version-

Amd ≫ Epyc 7451 Version-

Amd ≫ Epyc 7452 Firmware Version-

Amd ≫ Epyc 7452 Version-

Amd ≫ Epyc 7453 Firmware Version-

Amd ≫ Epyc 7453 Version-

Amd ≫ Epyc 7473x Firmware Version-

Amd ≫ Epyc 7473x Version-

Amd ≫ Epyc 74f3 Firmware Version-

Amd ≫ Epyc 74f3 Version-

Amd ≫ Epyc 7501 Firmware Version-

Amd ≫ Epyc 7501 Version-

Amd ≫ Epyc 7502 Firmware Version-

Amd ≫ Epyc 7502 Version-

Amd ≫ Epyc 7502p Firmware Version-

Amd ≫ Epyc 7502p Version-

Amd ≫ Epyc 7513 Firmware Version-

Amd ≫ Epyc 7513 Version-

Amd ≫ Epyc 7532 Firmware Version-

Amd ≫ Epyc 7532 Version-

Amd ≫ Epyc 7542 Firmware Version-

Amd ≫ Epyc 7542 Version-

Amd ≫ Epyc 7543 Firmware Version-

Amd ≫ Epyc 7543 Version-

Amd ≫ Epyc 7543p Firmware Version-

Amd ≫ Epyc 7543p Version-

Amd ≫ Epyc 7551 Firmware Version-

Amd ≫ Epyc 7551 Version-

Amd ≫ Epyc 7551p Firmware Version-

Amd ≫ Epyc 7551p Version-

Amd ≫ Epyc 7552 Firmware Version-

Amd ≫ Epyc 7552 Version-

Amd ≫ Epyc 7573x Firmware Version-

Amd ≫ Epyc 7573x Version-

Amd ≫ Epyc 75f3 Firmware Version-

Amd ≫ Epyc 75f3 Version-

Amd ≫ Epyc 7601 Firmware Version-

Amd ≫ Epyc 7601 Version-

Amd ≫ Epyc 7642 Firmware Version-

Amd ≫ Epyc 7642 Version-

Amd ≫ Epyc 7643 Firmware Version-

Amd ≫ Epyc 7643 Version-

Amd ≫ Epyc 7662 Firmware Version-

Amd ≫ Epyc 7662 Version-

Amd ≫ Epyc 7663 Firmware Version-

Amd ≫ Epyc 7663 Version-

Amd ≫ Epyc 7702 Firmware Version-

Amd ≫ Epyc 7702 Version-

Amd ≫ Epyc 7702p Firmware Version-

Amd ≫ Epyc 7702p Version-

Amd ≫ Epyc 7713 Firmware Version-

Amd ≫ Epyc 7713 Version-

Amd ≫ Epyc 7713p Firmware Version-

Amd ≫ Epyc 7713p Version-

Amd ≫ Epyc 7742 Firmware Version-

Amd ≫ Epyc 7742 Version-

Amd ≫ Epyc 7763 Firmware Version-

Amd ≫ Epyc 7763 Version-

Amd ≫ Epyc 7773x Firmware Version-

Amd ≫ Epyc 7773x Version-

Amd ≫ Epyc 7f32 Firmware Version-

Amd ≫ Epyc 7f32 Version-

Amd ≫ Epyc 7f52 Firmware Version-

Amd ≫ Epyc 7f52 Version-

Amd ≫ Epyc 7f72 Firmware Version-

Amd ≫ Epyc 7f72 Version-

Amd ≫ Epyc 7h12 Firmware Version-

Amd ≫ Epyc 7h12 Version-

Amd ≫ Ryzen 3 2200u Firmware Version-

Amd ≫ Ryzen 3 2200u Version-

Amd ≫ Ryzen 3 2300u Firmware Version-

Amd ≫ Ryzen 3 2300u Version-

Amd ≫ Ryzen 3 3100 Firmware Version-

Amd ≫ Ryzen 3 3100 Version-

Amd ≫ Ryzen 3 3200u Firmware Version-

Amd ≫ Ryzen 3 3200u Version-

Amd ≫ Ryzen 3 3250u Firmware Version-

Amd ≫ Ryzen 3 3250u Version-

Amd ≫ Ryzen 3 3300g Firmware Version-

Amd ≫ Ryzen 3 3300g Version-

Amd ≫ Ryzen 3 3300u Firmware Version-

Amd ≫ Ryzen 3 3300u Version-

Amd ≫ Ryzen 3 3300x Firmware Version-

Amd ≫ Ryzen 3 3300x Version-

Amd ≫ Ryzen 3 3350u Firmware Version-

Amd ≫ Ryzen 3 3350u Version-

Amd ≫ Ryzen 3 3450u Firmware Version-

Amd ≫ Ryzen 3 3450u Version-

Amd ≫ Ryzen 3 3500c Firmware Version-

Amd ≫ Ryzen 3 3500c Version-

Amd ≫ Ryzen 3 3500u Firmware Version-

Amd ≫ Ryzen 3 3500u Version-

Amd ≫ Ryzen 3 3550h Firmware Version-

Amd ≫ Ryzen 3 3550h Version-

Amd ≫ Ryzen 3 3580u Firmware Version-

Amd ≫ Ryzen 3 3580u Version-

Amd ≫ Ryzen 3 3700c Firmware Version-

Amd ≫ Ryzen 3 3700c Version-

Amd ≫ Ryzen 3 3700u Firmware Version-

Amd ≫ Ryzen 3 3700u Version-

Amd ≫ Ryzen 3 3750h Firmware Version-

Amd ≫ Ryzen 3 3750h Version-

Amd ≫ Ryzen 3 3780u Firmware Version-

Amd ≫ Ryzen 3 3780u Version-

Amd ≫ Ryzen 3 4300g Firmware Version-

Amd ≫ Ryzen 3 4300g Version-

Amd ≫ Ryzen 3 4300ge Firmware Version-

Amd ≫ Ryzen 3 4300ge Version-

Amd ≫ Ryzen 3 4300u Firmware Version-

Amd ≫ Ryzen 3 4300u Version-

Amd ≫ Ryzen 3 5125c Firmware Version-

Amd ≫ Ryzen 3 5125c Version-

Amd ≫ Ryzen 3 5300g Firmware Version-

Amd ≫ Ryzen 3 5300g Version-

Amd ≫ Ryzen 3 5300ge Firmware Version-

Amd ≫ Ryzen 3 5300ge Version-

Amd ≫ Ryzen 3 5300u Firmware Version-

Amd ≫ Ryzen 3 5300u Version-

Amd ≫ Ryzen 3 5400u Firmware Version-

Amd ≫ Ryzen 3 5400u Version-

Amd ≫ Ryzen 3 5425c Firmware Version-

Amd ≫ Ryzen 3 5425c Version-

Amd ≫ Ryzen 3 5425u Firmware Version-

Amd ≫ Ryzen 3 5425u Version-

Amd ≫ Ryzen 5 2500u Firmware Version-

Amd ≫ Ryzen 5 2500u Version-

Amd ≫ Ryzen 5 2600 Firmware Version-

Amd ≫ Ryzen 5 2600 Version-

Amd ≫ Ryzen 5 2600h Firmware Version-

Amd ≫ Ryzen 5 2600h Version-

Amd ≫ Ryzen 5 2600x Firmware Version-

Amd ≫ Ryzen 5 2600x Version-

Amd ≫ Ryzen 5 2700x Firmware Version-

Amd ≫ Ryzen 5 2700x Version-

Amd ≫ Ryzen 5 3400g Firmware Version-

Amd ≫ Ryzen 5 3400g Version-

Amd ≫ Ryzen 5 3450g Firmware Version-

Amd ≫ Ryzen 5 3450g Version-

Amd ≫ Ryzen 5 3500u Firmware Version-

Amd ≫ Ryzen 5 3500u Version-

Amd ≫ Ryzen 5 3550h Firmware Version-

Amd ≫ Ryzen 5 3550h Version-

Amd ≫ Ryzen 5 3580u Firmware Version-

Amd ≫ Ryzen 5 3580u Version-

Amd ≫ Ryzen 5 3600 Firmware Version-

Amd ≫ Ryzen 5 3600 Version-

Amd ≫ Ryzen 5 3600x Firmware Version-

Amd ≫ Ryzen 5 3600x Version-

Amd ≫ Ryzen 5 3600xt Firmware Version-

Amd ≫ Ryzen 5 3600xt Version-

Amd ≫ Ryzen 5 4500u Firmware Version-

Amd ≫ Ryzen 5 4500u Version-

Amd ≫ Ryzen 5 4600g Firmware Version-

Amd ≫ Ryzen 5 4600g Version-

Amd ≫ Ryzen 5 4600ge Firmware Version-

Amd ≫ Ryzen 5 4600ge Version-

Amd ≫ Ryzen 5 4600h Firmware Version-

Amd ≫ Ryzen 5 4600h Version-

Amd ≫ Ryzen 5 4600u Firmware Version-

Amd ≫ Ryzen 5 4600u Version-

Amd ≫ Ryzen 5 5500u Firmware Version-

Amd ≫ Ryzen 5 5500u Version-

Amd ≫ Ryzen 5 5560u Firmware Version-

Amd ≫ Ryzen 5 5560u Version-

Amd ≫ Ryzen 5 5600g Firmware Version-

Amd ≫ Ryzen 5 5600g Version-

Amd ≫ Ryzen 5 5600ge Firmware Version-

Amd ≫ Ryzen 5 5600ge Version-

Amd ≫ Ryzen 5 5600h Firmware Version-

Amd ≫ Ryzen 5 5600h Version-

Amd ≫ Ryzen 5 5600hs Firmware Version-

Amd ≫ Ryzen 5 5600hs Version-

Amd ≫ Ryzen 5 5600u Firmware Version-

Amd ≫ Ryzen 5 5600u Version-

Amd ≫ Ryzen 5 5600x Firmware Version-

Amd ≫ Ryzen 5 5600x Version-

Amd ≫ Ryzen 5 5625c Firmware Version-

Amd ≫ Ryzen 5 5625c Version-

Amd ≫ Ryzen 5 5625u Firmware Version-

Amd ≫ Ryzen 5 5625u Version-

Amd ≫ Ryzen 5 5700g Firmware Version-

Amd ≫ Ryzen 5 5700g Version-

Amd ≫ Ryzen 5 5700ge Firmware Version-

Amd ≫ Ryzen 5 5700ge Version-

Amd ≫ Ryzen 7 2700 Firmware Version-

Amd ≫ Ryzen 7 2700 Version-

Amd ≫ Ryzen 7 2700u Firmware Version-

Amd ≫ Ryzen 7 2700u Version-

Amd ≫ Ryzen 7 2700x Firmware Version-

Amd ≫ Ryzen 7 2700x Version-

Amd ≫ Ryzen 7 2800h Firmware Version-

Amd ≫ Ryzen 7 2800h Version-

Amd ≫ Ryzen 7 3700u Firmware Version-

Amd ≫ Ryzen 7 3700u Version-

Amd ≫ Ryzen 7 3700x Firmware Version-

Amd ≫ Ryzen 7 3700x Version-

Amd ≫ Ryzen 7 3750h Firmware Version-

Amd ≫ Ryzen 7 3750h Version-

Amd ≫ Ryzen 7 3780u Firmware Version-

Amd ≫ Ryzen 7 3780u Version-

Amd ≫ Ryzen 7 3800x Firmware Version-

Amd ≫ Ryzen 7 3800x Version-

Amd ≫ Ryzen 7 3800xt Firmware Version-

Amd ≫ Ryzen 7 3800xt Version-

Amd ≫ Ryzen 7 4700g Firmware Version-

Amd ≫ Ryzen 7 4700g Version-

Amd ≫ Ryzen 7 4700ge Firmware Version-

Amd ≫ Ryzen 7 4700ge Version-

Amd ≫ Ryzen 7 4700u Firmware Version-

Amd ≫ Ryzen 7 4700u Version-

Amd ≫ Ryzen 7 4800h Firmware Version-

Amd ≫ Ryzen 7 4800h Version-

Amd ≫ Ryzen 7 4800u Firmware Version-

Amd ≫ Ryzen 7 4800u Version-

Amd ≫ Ryzen 7 5700g Firmware Version-

Amd ≫ Ryzen 7 5700g Version-

Amd ≫ Ryzen 7 5700ge Firmware Version-

Amd ≫ Ryzen 7 5700ge Version-

Amd ≫ Ryzen 7 5700u Firmware Version-

Amd ≫ Ryzen 7 5700u Version-

Amd ≫ Ryzen 7 5700x Firmware Version-

Amd ≫ Ryzen 7 5700x Version-

Amd ≫ Ryzen 7 5800h Firmware Version-

Amd ≫ Ryzen 7 5800h Version-

Amd ≫ Ryzen 7 5800hs Firmware Version-

Amd ≫ Ryzen 7 5800hs Version-

Amd ≫ Ryzen 7 5800u Firmware Version-

Amd ≫ Ryzen 7 5800u Version-

Amd ≫ Ryzen 7 5800x Firmware Version-

Amd ≫ Ryzen 7 5800x Version-

Amd ≫ Ryzen 7 5800x3d Firmware Version-

Amd ≫ Ryzen 7 5800x3d Version-

Amd ≫ Ryzen 7 5825c Firmware Version-

Amd ≫ Ryzen 7 5825c Version-

Amd ≫ Ryzen 7 5825u Firmware Version-

Amd ≫ Ryzen 7 5825u Version-

Amd ≫ Ryzen 9 3900x Firmware Version-

Amd ≫ Ryzen 9 3900x Version-

Amd ≫ Ryzen 9 3950x Firmware Version-

Amd ≫ Ryzen 9 3950x Version-

Amd ≫ Ryzen 9 4900h Firmware Version-

Amd ≫ Ryzen 9 4900h Version-

Amd ≫ Ryzen 9 4900hs Firmware Version-

Amd ≫ Ryzen 9 4900hs Version-

Amd ≫ Ryzen 9 5900hs Firmware Version-

Amd ≫ Ryzen 9 5900hs Version-

Amd ≫ Ryzen 9 5900hx Firmware Version-

Amd ≫ Ryzen 9 5900hx Version-

Amd ≫ Ryzen 9 5900x Firmware Version-

Amd ≫ Ryzen 9 5900x Version-

Amd ≫ Ryzen 9 5950x Firmware Version-

Amd ≫ Ryzen 9 5950x Version-

Amd ≫ Ryzen 9 5980hs Firmware Version-

Amd ≫ Ryzen 9 5980hs Version-

Amd ≫ Ryzen 9 5980hx Firmware Version-

Amd ≫ Ryzen 9 5980hx Version-

Amd ≫ Ryzen Threadripper 2920x Firmware Version-

Amd ≫ Ryzen Threadripper 2920x Version-

Amd ≫ Ryzen Threadripper 2950x Firmware Version-

Amd ≫ Ryzen Threadripper 2950x Version-

Amd ≫ Ryzen Threadripper 2970wx Firmware Version-

Amd ≫ Ryzen Threadripper 2970wx Version-

Amd ≫ Ryzen Threadripper 2990wx Firmware Version-

Amd ≫ Ryzen Threadripper 2990wx Version-

Amd ≫ Ryzen Threadripper 3960x Firmware Version-

Amd ≫ Ryzen Threadripper 3960x Version-

Amd ≫ Ryzen Threadripper 3970x Firmware Version-

Amd ≫ Ryzen Threadripper 3970x Version-

Amd ≫ Ryzen Threadripper 3990x Firmware Version-

Amd ≫ Ryzen Threadripper 3990x Version-

Amd ≫ Ryzen Threadripper Pro 3795wx Firmware Version-

Amd ≫ Ryzen Threadripper Pro 3795wx Version-

Amd ≫ Ryzen Threadripper Pro 3945wx Firmware Version-

Amd ≫ Ryzen Threadripper Pro 3945wx Version-

Amd ≫ Ryzen Threadripper Pro 3955wx Firmware Version-

Amd ≫ Ryzen Threadripper Pro 3955wx Version-

Amd ≫ Ryzen Threadripper Pro 3975wx Firmware Version-

Amd ≫ Ryzen Threadripper Pro 3975wx Version-

Amd ≫ Ryzen Threadripper Pro 3995wx Firmware Version-

Amd ≫ Ryzen Threadripper Pro 3995wx Version-

Amd ≫ Ryzen Threadripper Pro 5945wx Firmware Version-

Amd ≫ Ryzen Threadripper Pro 5945wx Version-

Amd ≫ Ryzen Threadripper Pro 5955wx Firmware Version-

Amd ≫ Ryzen Threadripper Pro 5955wx Version-

Amd ≫ Ryzen Threadripper Pro 5965wx Firmware Version-

Amd ≫ Ryzen Threadripper Pro 5965wx Version-

Amd ≫ Ryzen Threadripper Pro 5975wx Firmware Version-

Amd ≫ Ryzen Threadripper Pro 5975wx Version-

Amd ≫ Ryzen Threadripper Pro 5995wx Firmware Version-

Amd ≫ Ryzen Threadripper Pro 5995wx Version-

Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.

EPSS Metriken
Type	Source	Score	Percentile
EPSS	FIRST.org	0.13%	0.332

CVSS Metriken
Source	Base Score	Exploit Score	Impact Score	Vector string
nvd@nist.gov	5.6	1.1	4	CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

CWE-203 Observable Discrepancy

The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not.

https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1039

Vendor Advisory

https://nvd.nist.gov/vuln/detail/CVE-2021-46778

CVE Source (NVD)

https://cveawg.mitre.org/api/cve/CVE-2021-46778

CVE Source (JSON)

https://euvd.enisa.europa.eu/vulnerability/CVE-2021-46778

EUVD