Vulnerability · Published Sep 5, 2025 · Assigned by AMD
CVE-2021-26383
High 7.9
In plain English
A high-severity out-of-bounds write in AMD Instinct™ MI210 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 7% of all known vulnerabilities).
Severity (CVSS 3.1)7.9High
Exploit odds (30 days)0.2%top 93.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Insufficient bounds checking in AMD TEE (Trusted Execution Environment) could allow an attacker with a compromised userspace to invoke a command with malformed arguments leading to out of bounds memory access, potentially resulting in loss of integrity or availability.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| AMD | AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics | see references |
| AMD | AMD Ryzen™ 4000 Series Desktop Processors | see references |
| AMD | AMD Ryzen™ 7030 Series Mobile Processors with Radeon™ Graphics | see references |
| AMD | AMD Ryzen™ 5000 Series Desktop Processors with Radeon™ Graphics | see references |
| AMD | AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics | see references |
| AMD | AMD Ryzen™ Embedded V2000 Series Processors | see references |
| AMD | AMD Radeon™ RX 5000 Series Graphics Products | see references |
| AMD | AMD Radeon™ RX 6000 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 Instinct™ MI210 | see references |
| AMD | AMD Instinct™ MI250 | see references |
| AMD | AMD Radeon™ PRO V520 Graphics Products | see references |
| AMD | AMD Radeon™ PRO V620 Graphics Products | see references |
Weakness: CWE-787 · Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H