CVE-2021-26377

Published: Sep 6, 2025

Modified: Sep 8, 2025

PUBLISHED

CVSS v3.1

4.1

MEDIUM

Description

Insufficient parameter validation while allocating process space in the Trusted OS (TOS) may allow for a malicious userspace process to trigger an integer overflow, leading to a potential denial of service.

Vendor	Product	Versions
AMD	AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics	unaffected `CezannePI-FP6 1.0.0.8`
AMD	AMD Ryzen™ Threadripper™ 3000 Series Processors	unaffected `CastlePeakPI-SP3r3 1.0.0.7`
AMD	AMD Ryzen™ Threadripper™ PRO 3000WX Series Processors	unaffected `CastlePeakWSPI-sWRX8 1.0.0.9`
AMD	AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics	unaffected `CezannePI-FP6 1.0.0.8`
AMD	AMD Ryzen™ Threadripper™ PRO 5000 WX-Series Processors	unaffected `ChagallWSPI-sWRX8 1.0.0.2`
AMD	AMD Ryzen™ 5000 Series Desktop Processors	unaffected `ComboAM4v2 PI 1.2.0.5`
AMD	AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics	unaffected `PicassoPI-FP5 1.0.0.E` unaffected `PollockPI-FT5 1.0.0.4`
AMD	AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics	unaffected `CezannePI-FP6 1.0.0.8`
AMD	AMD Ryzen™ 3000 Series Desktop Processors	unaffected `ComboAM4PI 1.0.0.9/ ComboAM4 V2 PI 1.2.0.8`
AMD	AMD Ryzen™ 7030 Series Mobile processors with Radeon™ Graphics	unaffected `CezannePI-FP6 1.0.0.8`
AMD	AMD Ryzen™ 4000 Series Desktop Processors	unaffected `ComboAM4v2 PI 1.2.0.5`
AMD	AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics	unaffected `RenoirPI-FP6 1.0.0.8`
AMD	AMD Ryzen™ 5000 Series Desktop Processors	unaffected `ComboAM4 V2 PI 1.2.0.8`
AMD	AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics	unaffected `RembrandtPI-FP7_0.0.8.0 RC1`
AMD	AMD Ryzen™ Embedded R1000 Series Processors	unaffected `EmbeddedPI-FP5_1.2.0.A`
AMD	AMD Ryzen™ Embedded R2000 Series Processors	unaffected `EmbeddedR2KPI-FP5_1.0.0.2`
AMD	AMD Ryzen™ Embedded 5000 Series Processors	unaffected `EmbAM4PI 1.0.0.2`
AMD	AMD Ryzen™ Embedded V1000 Series Processors	unaffected `EmbeddedPI-FP5_1.2.0.A`
AMD	AMD Ryzen™ Embedded V2000 Series Processors	unaffected `EmbeddedPI-FP6_1.0.0.6`
AMD	AMD Ryzen™ Embedded V3000 Series Processors	unaffected `EmbeddedPI-FP7r2_1000`
AMD	AMD Radeon™ RX 5000 Series Graphics Products	unaffected `AMD Software: Adrenalin Edition 24.7.1 (24.10.29.01)` unaffected `AMD Software: PRO Edition 24.Q2 (24.10.20)`
AMD	AMD Radeon™ PRO W5000 Series Graphics Products	unaffected `AMD Software: PRO Edition 24.Q2 (24.10.20)`
AMD	AMD Radeon™ RX 6000 Series Graphics Products	unaffected `AMD Software: Adrenalin Edition 24.7.1 (24.10.29.01)` unaffected `AMD Software: PRO Edition 24.Q2 (24.10.20)`
AMD	AMD Radeon™ PRO W6000 Series Graphics Products	unaffected `AMD Software: PRO Edition 24.Q2 (24.10.20)`
AMD	AMD Radeon™ Instinct™ MI25 Graphics Products	unaffected `Contact your AMD Customer Engineering representative`
AMD	AMD Radeon™ PRO V520 Graphics Products	unaffected `Contact your AMD Customer Engineering representative`
AMD	AMD Radeon™ PRO V620 Graphics Products	unaffected `Contact your AMD Customer Engineering representative`