Buffer overflow in Amd Instinct™ Mi210
CVE-2021-26383
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…
Vulnerability class: Buffer Overflow
EPSS: 0.000 (4.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.9 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H.
Affected products
- Amd Instinct™ Mi210 — versions ROCm 6.4
- Amd Instinct™ Mi250 — versions ROCm 6.4
- Amd Radeon™ Pro V520 Graphics Products — versions Contact your AMD Customer Engineering representative
- Amd Radeon™ Pro V620 Graphics Products — versions Contact your AMD Customer Engineering representative
- Amd Radeon™ Pro W5000 Series Graphics Products — versions AMD Software: PRO Edition 23.Q1 (22.40.37.05)
- Amd Radeon™ Pro W6000 Series Graphics Products — versions AMD Software: PRO Edition 23.Q1 (22.40.37.05)
- Amd Radeon™ Rx 5000 Series Graphics Products — versions AMD Software: Adrenalin Edition 23.2.1 (22.40.01.45)
- Amd Radeon™ Rx 6000 Series Graphics Products — versions AMD Software: Adrenalin Edition 23.2.1 (22.40.01.45)
- Amd Ryzen™ 4000 Series Desktop Processors — versions ComboAM4v2 PI 1.2.0.5
- Amd Ryzen™ 4000 Series Mobile Processors With Radeon™ Graphics — versions RenoirPI-FP6 1.0.0.7
Weakness classification (CWE)
Public proof-of-concept exploits
References
Frequently asked questions
- What is CVE-2021-26383?
- CVE-2021-26383 is a high-severity vulnerability in Amd Instinct™ Mi210, classified under Out-of-bounds Write. CVSS score: 7.9/10. Published 2025-09-05.
- How severe is CVE-2021-26383?
- High severity. CVSS v3 base score is 7.9 out of 10.
- Is CVE-2021-26383 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.