CVE-2021-26383
Insufficient bounds checking in AMD TEE (Trusted Execution Environment) could allow an attacker...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
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.
- Record
CVE-2021-26383- CVSS 3.1
- 7.9 High
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
EUVDEUVD-2021-13189
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.
- Record
EUVD-2021-13189- CVSS 3.1
- 7.9 High
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-89mm-wx6j-wpmg
Insufficient bounds checking in AMD TEE (Trusted Execution Environment) could allow an attacker...
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.
- Record
GHSA-89mm-wx6j-wpmg- CVSS 3.1
- 7.9 High
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2021-26383- CVSS 3.1
- 7.9 High
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
Affected products
- amd instinct™ mi210
- amd instinct™ mi250
- amd radeon™ pro v520 graphics products
- amd radeon™ pro v620 graphics products
- amd radeon™ pro w5000 series graphics products
- amd radeon™ pro w6000 series graphics products
- amd radeon™ rx 5000 series graphics products
- amd radeon™ rx 6000 series graphics products
- amd ryzen™ 4000 series desktop processors
- amd ryzen™ 4000 series mobile processors with radeon™ graphics
- amd ryzen™ 5000 series desktop processors with radeon™ graphics
- amd ryzen™ 5000 series mobile processors with radeon™ graphics
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-26383 is a high vulnerability (CVSS 7.9) in Amd Instinct™ Mi210, published September 5, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.17%, the 6th percentile. No source names a fixed version.