1. Home
  2. CVE Database
  3. CVE-2021-26312
MEDIUM · 5.5

CVE-2021-26312

Failure to flush the Translation Lookaside Buffer (TLB) of the I/O memory management unit (IOMMU) may lead an IO device to write to memory it should not be able to access, resulting in a potential los...

Vulnerability Description

Failure to flush the Translation Lookaside Buffer (TLB) of the I/O memory management unit (IOMMU) may lead an IO device to write to memory it should not be able to access, resulting in a potential loss of integrity.

CVSS Score

5.5

MEDIUM

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

Affected Products

VendorProductVersions
AmdEpyc 7601 Firmware< naplespi-sp3_1.0.0.g
AmdEpyc 7601-
AmdEpyc 7551P Firmware< naplespi-sp3_1.0.0.g
AmdEpyc 7551P-
AmdEpyc 7551 Firmware< naplespi-sp3_1.0.0.g
AmdEpyc 7551-
AmdEpyc 7501 Firmware< naplespi-sp3_1.0.0.g
AmdEpyc 7501-
AmdEpyc 7451 Firmware< naplespi-sp3_1.0.0.g
AmdEpyc 7451-
AmdEpyc 7401 Firmware< naplespi-sp3_1.0.0.g
AmdEpyc 7401-
AmdEpyc 7371 Firmware< naplespi-sp3_1.0.0.g
AmdEpyc 7371-
AmdEpyc 7351P Firmware< naplespi-sp3_1.0.0.g
AmdEpyc 7351P-
AmdEpyc 7351 Firmware< naplespi-sp3_1.0.0.g
AmdEpyc 7351-
AmdEpyc 7301 Firmware< naplespi-sp3_1.0.0.g
AmdEpyc 7301-

Related Weaknesses (CWE)

CWE-665CWE-668

References

FAQ

What is CVE-2021-26312?

CVE-2021-26312 is a vulnerability with a CVSS score of 5.5 (MEDIUM). Failure to flush the Translation Lookaside Buffer (TLB) of the I/O memory management unit (IOMMU) may lead an IO device to write to memory it should not be able to access, resulting in a potential los...

How severe is CVE-2021-26312?

CVE-2021-26312 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-2021-26312?

Check the references section above for vendor advisories and patch information. Affected products include: Amd Epyc 7601 Firmware, Amd Epyc 7601, Amd Epyc 7551P Firmware, Amd Epyc 7551P, Amd Epyc 7551 Firmware.