Back to Database
Status published
High
CVE-2021-26381
Improper system call parameter validation in the Trusted OS may...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2021-26381
Credits & Attribution
No credits recorded in the NVD database.
References
More from AMD
View All →CVE-2025-66664
Insufficient parameter sanitization in AMD Secure Processor (ASP) TEE SOC...
Medium
4.6
CVE-2025-66660
Insufficient parameter sanitization in TEE SOC Driver could allow an...
Low
1.8
CVE-2025-62628
Unsafe OpenSSL initialization within some AMD optional tools may allow...
High
7
CVE-2025-62627
An untrusted pointer dereference in the ionic cloud driver for...
High
7.2
CVE-2025-62626
Improper handling of insufficient entropy in the AMD CPUs could...
High
7.2
Affected Vendor
Affected Software
AMD Ryzen™ Threadripper™ PRO 3000 WX-Series Processors, AMD Ryzen™ 5000 Series Desktop Processors with Radeon™ Graphics, AMD Ryzen™ Threadripper™ PRO 5000 WX-Series Processors, AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics, AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics, AMD Ryzen™ 3000 Series Desktop Processors, AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics, AMD Ryzen™ 4000 Series Desktop Processors, AMD Ryzen™ 5000 Series Desktop Processors, AMD Ryzen™ Embedded R1000 Series Processors, AMD Ryzen™ Embedded R2000 Series Processors, AMD Ryzen™ Embedded 5000 Series Processors, AMD Ryzen™ Embedded V1000 Series Processors (formerly codenamed "Raven Ridge"), AMD Ryzen™ Embedded V1000 Series Processors (formerly codenamed "Picasso"), AMD Ryzen™ Embedded V2000 Series Processors, AMD Ryzen™ Embedded V3000 Series Processors, AMD Radeon™ RX 5000 Series Graphics Products, AMD Radeon™ PRO W5000 Series Graphics Products, AMD Radeon™ PRO W6000 Series Graphics Products, AMD Radeon™ RX 6000 Series Graphics Products, AMD Radeon™ PRO V520, AMD Radeon™ PRO V620
Vulnerable Versions:
ChagallWSPI-sWRX8 1.0.0.2/ CastlePeakWSPI-sWRX8 1.0.0.9, ComboAM4v2 PI 1.2.0.5, ChagallWSPI-sWRX8 1.0.0.1, PicassoPI-FP5 1.0.0.E, CezannePI-FP6 1.0.0.8, ComboAM4PI 1.0.0.9/ ComboAM4 V2 PI 1.2.0.8, RenoirPI-FP6 1.0.0.8, ComboAM4 V2 PI 1.2.0.8, EmbeddedPI-FP5 1.2.0.A, EmbeddedR2KPI-FP5_1.0.0.2, EmbAM4PI 1.0.0.2, 120A, EmbeddedPI-FP6_1.0.0.6, EmbeddedPI-FP7r2_0080, AMD Software: Adrenalin Edition 25.4.1 (24.30.31.08), AMD Software: PRO Edition 25.Q2(25.10.10), Contact Your AMD Customer Engineering Represenatative
Timeline
Official Publish:
February 10th, 2026
Last Modified:
February 26th, 2026
Added to House:
July 21st, 2026