CVE-2021-26377: AMD Athlon 3000 Series Mobile Processors With Radeon Graphics

Medium severity, CVSS 4.1. EPSS: 0.2% chance of exploitation in the next 30 days.

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.

Affected products

• AMD AMD Athlon 3000 Series Mobile Processors With Radeon Graphics
• AMD AMD Radeon Instinct MI25 Graphics Products
• AMD AMD Radeon Pro v520 Graphics Products
• AMD AMD Radeon Pro v620 Graphics Products
• AMD AMD Radeon Pro w5000 Series Graphics Products
• AMD AMD Radeon Pro w6000 Series Graphics Products
• AMD AMD Radeon Rx 5000 Series Graphics Products
• AMD AMD Radeon Rx 6000 Series Graphics Products
• AMD AMD Ryzen 3000 Series Desktop Processors
• AMD AMD Ryzen 4000 Series Desktop Processors
• AMD AMD Ryzen 4000 Series Mobile Processors With Radeon Graphics
• AMD AMD Ryzen 5000 Series Desktop Processors
• AMD AMD Ryzen 5000 Series Mobile Processors With Radeon Graphics
• AMD AMD Ryzen 5000 Series Processors With Radeon Graphics
• AMD AMD Ryzen 6000 Series Processors With Radeon Graphics
• AMD AMD Ryzen 7030 Series Mobile Processors With Radeon Graphics
• AMD AMD Ryzen Embedded 5000 Series Processors
• AMD AMD Ryzen Embedded r1000 Series Processors
• AMD AMD Ryzen Embedded r2000 Series Processors
• AMD AMD Ryzen Embedded v1000 Series Processors
• AMD AMD Ryzen Embedded v2000 Series Processors
• AMD AMD Ryzen Embedded v3000 Series Processors
• AMD AMD Ryzen Threadripper 3000 Series Processors
• AMD AMD Ryzen Threadripper Pro 3000wx Series Processors
• AMD AMD Ryzen Threadripper Pro 5000 Wx-Series Processors

Published 2025-09-06. Last modified 2026-06-17.