VDB
CVE-2021-26383
CVE-2021-26383
PUBLISHED
CVSS 7.9 HIGH
Reported by amd · Published September 5, 2025
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.
Risk scores
CVSS 3.1
7.9
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H
Affected products
| Vendor | Product | Versions |
|---|---|---|
| AMD | AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics | CezannePI-FP6 1.0.0.6 |
| AMD | AMD Ryzen™ 4000 Series Desktop Processors | ComboAM4v2 PI 1.2.0.5 |
| AMD | AMD Ryzen™ 7030 Series Mobile Processors with Radeon™ Graphics | CezannePI-FP6 1.0.0.6 |
| AMD | AMD Ryzen™ 5000 Series Desktop Processors with Radeon™ Graphics | ComboAM4v2 PI 1.2.0.5 |
| AMD | AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics | RenoirPI-FP6 1.0.0.7 |
| AMD | AMD Ryzen™ Embedded V2000 Series Processors | EmbeddedPI-FP6_1.0.0.6 |
| AMD | AMD Radeon™ RX 5000 Series Graphics Products | AMD Software: Adrenalin Edition 23.2.1 (22.40.01.45) |
| AMD | AMD Radeon™ RX 6000 Series Graphics Products | AMD Software: Adrenalin Edition 23.2.1 (22.40.01.45) |
| AMD | AMD Radeon™ PRO W5000 Series Graphics Products | AMD Software: PRO Edition 23.Q1 (22.40.37.05) |
| AMD | AMD Radeon™ PRO W6000 Series Graphics Products | AMD Software: PRO Edition 23.Q1 (22.40.37.05) |
| AMD | AMD Instinct™ MI210 | ROCm 6.4 |
| AMD | AMD Instinct™ MI250 | ROCm 6.4 |
| AMD | AMD Radeon™ PRO V520 Graphics Products | Contact your AMD Customer Engineering representative |
| AMD | AMD Radeon™ PRO V620 Graphics Products | Contact your AMD Customer Engineering representative |
| AMD | AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics | 1.0.0.6 |
| AMD | AMD Radeon™ PRO V620 Graphics Products | * |
| AMD | AMD Radeon™ RX 5000 Series Graphics Products | 23.2.1 |
| AMD | AMD Radeon™ PRO W5000 Series Graphics Products | 22.40.37.05 |
| AMD | AMD Instinct™ MI210 | 6.4 |
| AMD | AMD Radeon™ PRO W6000 Series Graphics Products | 22.40.37.05 |
…and 8 more
Timeline
- Aug 12, 2025 CVE Published
- Sep 6, 2025 EPSS Score (30 in total, the first dated here)
- Jun 2, 2026 Security Advisory (21 in total, the first dated here)
- Jun 28, 2026 CVE Updated
- Aug 8, 2026 Coalition ESS Score
- Nov 2, 2026 Distribution Patch (20 in total, the first dated here)
Query this with the API
The same record, from the CLI:
vulnetix vdb vuln CVE-2021-26383
vulnetix vdb fixes CVE-2021-26383Or with curl, using the org id and key from your account page:
curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
"https://api.vdb.vulnetix.com/v2/vuln/CVE-2021-26383/fixes/registry"The Community plan is free and allows 50 queries a day. Get a free API key · API quickstart