CVE-2021-26338

published 2021-11-16

CVE-2021-26338: Improper access controls in System Management Unit (SMU) may allow for an attacker to override performance control tables located in DRAM resulting in a…

Priority P3 40 high 7.5 CVSS 3.1

AV N AC L PR N UI N S U C N I N A H

Improper access controls in System Management Unit (SMU) may allow for an attacker to override performance control tables located in DRAM resulting in a potential lack of system resources.

Affected

46 ranges · showing 25

Vendor	Product	Version range	Fixed in
amd	2nd_gen_amd_epyc	>= unspecified < RomePI-SP3_1.0.0.C	RomePI-SP3_1.0.0.C
amd	3rd_gen_amd_epyc	>= unspecified < MilanPI-SP3_1.0.0.4	MilanPI-SP3_1.0.0.4
amd	epyc_7232p_firmware	< romepi-sp3_1.0.0.c	romepi-sp3_1.0.0.c
amd	epyc_7252_firmware	< romepi-sp3_1.0.0.c	romepi-sp3_1.0.0.c
amd	epyc_7262_firmware	< romepi-sp3_1.0.0.c	romepi-sp3_1.0.0.c
amd	epyc_7272_firmware	< romepi-sp3_1.0.0.c	romepi-sp3_1.0.0.c
amd	epyc_7282_firmware	< romepi-sp3_1.0.0.c	romepi-sp3_1.0.0.c
amd	epyc_72f3_firmware	< milanpi-sp3_1.0.0.4	milanpi-sp3_1.0.0.4
amd	epyc_7302_firmware	< romepi-sp3_1.0.0.c	romepi-sp3_1.0.0.c
amd	epyc_7302p_firmware	< romepi-sp3_1.0.0.c	romepi-sp3_1.0.0.c
amd	epyc_7313_firmware	< milanpi-sp3_1.0.0.4	milanpi-sp3_1.0.0.4
amd	epyc_7313p_firmware	< milanpi-sp3_1.0.0.4	milanpi-sp3_1.0.0.4
amd	epyc_7343_firmware	< milanpi-sp3_1.0.0.4	milanpi-sp3_1.0.0.4
amd	epyc_7352_firmware	< romepi-sp3_1.0.0.c	romepi-sp3_1.0.0.c
amd	epyc_73f3_firmware	< milanpi-sp3_1.0.0.4	milanpi-sp3_1.0.0.4
amd	epyc_7402_firmware	< romepi-sp3_1.0.0.c	romepi-sp3_1.0.0.c
amd	epyc_7402p_firmware	< romepi-sp3_1.0.0.c	romepi-sp3_1.0.0.c
amd	epyc_7413_firmware	< milanpi-sp3_1.0.0.4	milanpi-sp3_1.0.0.4
amd	epyc_7443_firmware	< milanpi-sp3_1.0.0.4	milanpi-sp3_1.0.0.4
amd	epyc_7443p_firmware	< milanpi-sp3_1.0.0.4	milanpi-sp3_1.0.0.4
amd	epyc_7452_firmware	< romepi-sp3_1.0.0.c	romepi-sp3_1.0.0.c
amd	epyc_7453_firmware	< milanpi-sp3_1.0.0.4	milanpi-sp3_1.0.0.4
amd	epyc_74f3_firmware	< milanpi-sp3_1.0.0.4	milanpi-sp3_1.0.0.4
amd	epyc_7502_firmware	< romepi-sp3_1.0.0.c	romepi-sp3_1.0.0.c
amd	epyc_7502p_firmware	< romepi-sp3_1.0.0.c	romepi-sp3_1.0.0.c

CVSS provenance

nvd v3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

nvd v2.0 7.8 HIGH AV:N/AC:L/Au:N/C:N/I:N/A:C

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.

CWE-284