Log in Start free

Vulnerability · Published Feb 10, 2026 · Assigned by AMD

CVE-2021-26381

High 7.1

In plain English

A high-severity resource allocation without limits in AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics from AMD. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 5% of all known vulnerabilities).

Severity (CVSS 4.0)7.1High
Exploit odds (30 days)0.2%top 94.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

VendorProductVersions
AMD AMD Ryzen™ Threadripper™ PRO 3000 WX-Series Processors see references
AMD AMD Ryzen™ 5000 Series Desktop Processors with Radeon™ Graphics see references
AMD AMD Ryzen™ Threadripper™ PRO 5000 WX-Series Processors see references
AMD AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics see references
AMD AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics see references
AMD AMD Ryzen™ 3000 Series Desktop Processors see references
AMD AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics see references
AMD AMD Ryzen™ 4000 Series Desktop Processors see references
AMD AMD Ryzen™ 5000 Series Desktop Processors see references
AMD AMD Ryzen™ Embedded R1000 Series Processors see references
AMD AMD Ryzen™ Embedded R2000 Series Processors see references
AMD AMD Ryzen™ Embedded 5000 Series Processors see references
AMD AMD Ryzen™ Embedded V1000 Series Processors (formerly codenamed "Raven Ridge") see references
AMD AMD Ryzen™ Embedded V1000 Series Processors (formerly codenamed "Picasso") see references
AMD AMD Ryzen™ Embedded V2000 Series Processors see references
AMD AMD Ryzen™ Embedded V3000 Series Processors see references
AMD AMD Radeon™ RX 5000 Series Graphics Products see references
AMD AMD Radeon™ PRO W5000 Series Graphics Products see references
AMD AMD Radeon™ PRO W6000 Series Graphics Products see references
AMD AMD Radeon™ RX 6000 Series Graphics Products see references
AMD AMD Radeon™ PRO V520 see references
AMD AMD Radeon™ PRO V620 see references

Weakness: CWE-770 · Vector: CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References