CVE-2021-26380

Trusted OS Driver Vulnerability Allowing Out‑of‑Bounds Memory Access

Published May 15, 2026 CVSS 4.0 · 1.8 Low EPSS < 1% KEV · Not listed
Description
A compromised Trusted OS (TOS) driver could issue a malformed call that could potentially allow memory access outside the intended range resulting in loss of integrity.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Amd
Amd athlon 3000 Series Mobile Processors With Radeon Graphics
Amd radeon Instinct Mi25
Amd radeon Pro V520
Amd radeon Pro V620
Amd radeon Pro Vii
Amd radeon Pro W5000 Series
Amd radeon Pro W6000 Series
Amd radeon Pro Wx 8000 Series
Amd radeon Pro Wx 9000 Series
Amd radeon Rx 5000 Series
Amd radeon Rx 6000 Series
Amd radeon Rx Vega Series
Amd radeon Vii
Amd ryzen 3000 Series Desktop Processors
Amd ryzen 4000 Series Desktop Processors
Amd ryzen 4000 Series Mobile Processors With Radeon Graphics
Amd ryzen 5000 Series Desktop Processors
Amd ryzen 5000 Series Desktop Processors With Radeon Graphics
Amd ryzen 5000 Series Mobile Processors With Radeon Graphics
Amd ryzen 7030 Series Mobile Processors With Radeon Graphics
Amd ryzen Embedded 5000 Series Processors
Amd ryzen Embedded R1000 Series Processors
Amd ryzen Embedded R2000 Series Processors
Amd ryzen Embedded V1000 Series Processors
Amd ryzen Embedded V2000 Series Processors
Amd ryzen Embedded V3000 Series Processors
Amd ryzen Threadripper Pro 5000 Wx-series Processors
Vendors & Products Amd
Amd athlon 3000 Series Mobile Processors With Radeon Graphics
Amd radeon Instinct Mi25
Amd radeon Pro V520
Amd radeon Pro V620
Amd radeon Pro Vii
Amd radeon Pro W5000 Series
Amd radeon Pro W6000 Series
Amd radeon Pro Wx 8000 Series
Amd radeon Pro Wx 9000 Series
Amd radeon Rx 5000 Series
Amd radeon Rx 6000 Series
Amd radeon Rx Vega Series
Amd radeon Vii
Amd ryzen 3000 Series Desktop Processors
Amd ryzen 4000 Series Desktop Processors
Amd ryzen 4000 Series Mobile Processors With Radeon Graphics
Amd ryzen 5000 Series Desktop Processors
Amd ryzen 5000 Series Desktop Processors With Radeon Graphics
Amd ryzen 5000 Series Mobile Processors With Radeon Graphics
Amd ryzen 7030 Series Mobile Processors With Radeon Graphics
Amd ryzen Embedded 5000 Series Processors
Amd ryzen Embedded R1000 Series Processors
Amd ryzen Embedded R2000 Series Processors
Amd ryzen Embedded V1000 Series Processors
Amd ryzen Embedded V2000 Series Processors
Amd ryzen Embedded V3000 Series Processors
Amd ryzen Threadripper Pro 5000 Wx-series Processors
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Trusted OS Driver Vulnerability Allowing Out‑of‑Bounds Memory Access
Type Values Removed Values Added
Description A compromised Trusted OS (TOS) driver could issue a malformed call that could potentially allow memory access outside the intended range resulting in loss of integrity.
Weaknesses CWE-190
References
Metrics cvssV4_0

{'score': 1.8, 'vector': 'CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
AMD
Published
Updated
May 15, 2026, 1:21 PM
Reserved
Jan 29, 2021, 9:24 PM
Status
Awaiting Analysis
Published
May 15, 2026, 3:16 AM
Modified
Jun 17, 2026, 3:43 AM