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MEDIUM · 5.5

CVE-2021-26336

Insufficient bounds checking in System Management Unit (SMU) may cause invalid memory accesses/updates that could result in SMU hang and subsequent failure to service any further requests from other c...

Vulnerability Description

Insufficient bounds checking in System Management Unit (SMU) may cause invalid memory accesses/updates that could result in SMU hang and subsequent failure to service any further requests from other components.

CVSS Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
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 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-
AmdEpyc 7443P Firmware< milanpi-sp3_1.0.0.4
AmdEpyc 7443P-

Related Weaknesses (CWE)

CWE-119

References

FAQ

What is CVE-2021-26336?

CVE-2021-26336 is a vulnerability with a CVSS score of 5.5 (MEDIUM). Insufficient bounds checking in System Management Unit (SMU) may cause invalid memory accesses/updates that could result in SMU hang and subsequent failure to service any further requests from other c...

How severe is CVE-2021-26336?

CVE-2021-26336 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-26336?

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 72F3 Firmware.