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CVE-2021-26381

Published: Feb 10, 2026Updated: Feb 10, 2026 Sources: CVE List NVD BDUCWE-770
NVD MITRE
6.4CVSSMEDIUM
EPSS Score
0.1%
Top 95.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Improper system call parameter validation in the Trusted OS may allow a malicious driver to perform mapping or unmapping operations on a large number of pages, potentially resulting in kernel memory corruption.

CVSS Vector Breakdown

AV:LAC:HC:HI:HA:H
Exploitability
AV:LAccess Vector
Local
AC:HAccess Complexity
High
Impact
C:HConfidentiality
H
I:HIntegrity
H
A:HAvailability
H
Open in CVSS calculator →

Weaknesses

CWE-770

Affected Products

AMD Radeon PRO V520Advanced Micro Devices Inc.Hardware Firmware
AMD Radeon PRO V620Advanced Micro Devices Inc.Hardware Firmware
AMD Ryzen Embedded V1000Advanced Micro Devices Inc.Hardware Firmware
AMD Ryzen Embedded 5000Advanced Micro Devices Inc.Hardware Firmware
AMD Ryzen Embedded R1000Advanced Micro Devices Inc.Hardware Firmware
advanced micro devices inc.commercialUSHardware Firmwareaka amd
and 40 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-4013.html
amd.com
https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-6024.html
amd.com
https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-4013.html
amd.com

Timeline

Published
Feb 10, 2026
Last Updated
Feb 10, 2026

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