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HIGH · 7.8

CVE-2021-26331

AMD System Management Unit (SMU) contains a potential issue where a malicious user may be able to manipulate mailbox entries leading to arbitrary code execution.

Vulnerability Description

AMD System Management Unit (SMU) contains a potential issue where a malicious user may be able to manipulate mailbox entries leading to arbitrary code execution.

CVSS Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
AmdEpyc 7003 Firmware< milanpi-sp3_1.0.0.4
AmdEpyc 7003-
AmdEpyc 7002 Firmware< romepi-sp3_1.0.0.c
AmdEpyc 7002-
AmdEpyc 7001 Firmware< naplespi-sp3_1.0.0.g
AmdEpyc 7001-
AmdEpyc 72F3 Firmware< milanpi-sp3_1.0.0.4
AmdEpyc 72F3-
AmdEpyc 7313 Firmware< milanpi-sp3_1.0.0.4
AmdEpyc 7313-
AmdEpyc 7313P Firmware< milanpi-sp3_1.0.0.4
AmdEpyc 7313P-
AmdEpyc 7343 Firmware< milanpi-sp3_1.0.0.4
AmdEpyc 7343-
AmdEpyc 73F3 Firmware< milanpi-sp3_1.0.0.4
AmdEpyc 73F3-
AmdEpyc 7413 Firmware< milanpi-sp3_1.0.0.4
AmdEpyc 7413-
AmdEpyc 7443 Firmware< milanpi-sp3_1.0.0.4
AmdEpyc 7443-

Related Weaknesses (CWE)

CWE-20

References

FAQ

What is CVE-2021-26331?

CVE-2021-26331 is a vulnerability with a CVSS score of 7.8 (HIGH). AMD System Management Unit (SMU) contains a potential issue where a malicious user may be able to manipulate mailbox entries leading to arbitrary code execution.

How severe is CVE-2021-26331?

CVE-2021-26331 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-26331?

Check the references section above for vendor advisories and patch information. Affected products include: Amd Epyc 7003 Firmware, Amd Epyc 7003, Amd Epyc 7002 Firmware, Amd Epyc 7002, Amd Epyc 7001 Firmware.