CVE-2021-26339: A bug in AMD CPU’s core logic may allow for an attacker, using specific code from an unprivileged VM, to trigger a CPU core hang resulting in a potential…

PriorityP421medium5.5CVSS 3.1

AVLACLPRLUINSUCNINAH

EPSS

0.27%

18.1th percentile

A bug in AMD CPU’s core logic may allow for an attacker, using specific code from an unprivileged VM, to trigger a CPU core hang resulting in a potential denial of service. AMD believes the specific code includes a specific x86 instruction sequence that would not be generated by compilers.

Affected

57 ranges· showing 25

Vendor	Product	Version range	Fixed in
amd	athlon_series	—	—
amd	epyc_72f3_firmware	< milanpi-sp3_1.0.0.7	milanpi-sp3_1.0.0.7
amd	epyc_7313_firmware	< milanpi-sp3_1.0.0.7	milanpi-sp3_1.0.0.7
amd	epyc_7313p_firmware	< milanpi-sp3_1.0.0.7	milanpi-sp3_1.0.0.7
amd	epyc_7343_firmware	< milanpi-sp3_1.0.0.7	milanpi-sp3_1.0.0.7
amd	epyc_7373x_firmware	< milanpi-sp3_1.0.0.7	milanpi-sp3_1.0.0.7
amd	epyc_73f3_firmware	< milanpi-sp3_1.0.0.7	milanpi-sp3_1.0.0.7
amd	epyc_7413_firmware	< milanpi-sp3_1.0.0.7	milanpi-sp3_1.0.0.7
amd	epyc_7443_firmware	< milanpi-sp3_1.0.0.7	milanpi-sp3_1.0.0.7
amd	epyc_7443p_firmware	< milanpi-sp3_1.0.0.7	milanpi-sp3_1.0.0.7
amd	epyc_7453_firmware	< milanpi-sp3_1.0.0.7	milanpi-sp3_1.0.0.7
amd	epyc_7473x_firmware	< milanpi-sp3_1.0.0.7	milanpi-sp3_1.0.0.7
amd	epyc_74f3_firmware	< milanpi-sp3_1.0.0.7	milanpi-sp3_1.0.0.7
amd	epyc_7513_firmware	< milanpi-sp3_1.0.0.7	milanpi-sp3_1.0.0.7
amd	epyc_7543_firmware	< milanpi-sp3_1.0.0.7	milanpi-sp3_1.0.0.7
amd	epyc_7543p_firmware	< milanpi-sp3_1.0.0.7	milanpi-sp3_1.0.0.7
amd	epyc_7573x_firmware	< milanpi-sp3_1.0.0.7	milanpi-sp3_1.0.0.7
amd	epyc_75f3_firmware	< milanpi-sp3_1.0.0.7	milanpi-sp3_1.0.0.7
amd	epyc_7643_firmware	< milanpi-sp3_1.0.0.7	milanpi-sp3_1.0.0.7
amd	epyc_7663_firmware	< milanpi-sp3_1.0.0.7	milanpi-sp3_1.0.0.7
amd	epyc_7713_firmware	< milanpi-sp3_1.0.0.7	milanpi-sp3_1.0.0.7
amd	epyc_7713p_firmware	< milanpi-sp3_1.0.0.7	milanpi-sp3_1.0.0.7
amd	epyc_7763_firmware	< milanpi-sp3_1.0.0.7	milanpi-sp3_1.0.0.7
amd	epyc_7773x_firmware	< milanpi-sp3_1.0.0.7	milanpi-sp3_1.0.0.7
amd	epyc_processors	—	—

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvdv2.04.9MEDIUMAV:L/AC:L/Au:N/C:N/I:N/A:C

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