CVE-2021-26351
Insufficient DRAM address validation in System Management Unit (SMU) may result in a DMA (Direct...
Insufficient DRAM address validation in System Management Unit (SMU) may result in a DMA (Direct Memory Access) read/write from/to invalid DRAM address that could result in denial of service.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
Insufficient DRAM address validation in System Management Unit (SMU) may result in a DMA (Direct Memory Access) read/write from/to invalid DRAM address that could result in denial of service.
- Record
CVE-2021-26351- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 4.9 Medium
AV:L/AC:L/Au:N/C:N/I:N/A:C - Weakness
- CWE-20
- Updated
- 2026-11-02
CVE List No score
Insufficient DRAM address validation in System Management Unit (SMU) may result in a DMA (Direct Memory Access) read/write from/to invalid DRAM address that could result in denial of service.
- Record
CVE-2021-26351- Updated
- 2026-11-02
EUVDEUVD-2021-13157 No score
Insufficient DRAM address validation in System Management Unit (SMU) may result in a DMA (Direct Memory Access) read/write from/to invalid DRAM address that could result in denial of service.
- Record
EUVD-2021-13157- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-5pj8-h4rh-gp3h
Insufficient DRAM address validation in System Management Unit (SMU) may result in a DMA (Direct...
Insufficient DRAM address validation in System Management Unit (SMU) may result in a DMA (Direct Memory Access) read/write from/to invalid DRAM address that could result in denial of service.
- Record
GHSA-5pj8-h4rh-gp3h- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-119
- Updated
- 2026-11-02
Affected products
- amd athlon™ series
- amd ryzen 3 3100 firmware
- amd ryzen 3 3300g firmware
- amd ryzen 3 3300x firmware
- amd ryzen 3 5125c firmware
- amd ryzen 3 5400u firmware
- amd ryzen 3 5425c firmware
- amd ryzen 3 5425u firmware
- amd ryzen 5 3400g firmware
- amd ryzen 5 3450g firmware
- amd ryzen 5 3600 firmware
- amd ryzen 5 3600x firmware
Show 39 moreShow less
- amd ryzen 5 5560u firmware
- amd ryzen 5 5600h firmware
- amd ryzen 5 5600hs firmware
- amd ryzen 5 5600u firmware
- amd ryzen 5 5600x firmware
- amd ryzen 5 5625c firmware
- amd ryzen 5 5625u firmware
- amd ryzen 5 5700g firmware
- amd ryzen 5 5700ge firmware
- amd ryzen 7 3700x firmware
- amd ryzen 7 3800x firmware
- amd ryzen 7 5800h firmware
- amd ryzen 7 5800hs firmware
- amd ryzen 7 5800u firmware
- amd ryzen 7 5825c firmware
- amd ryzen 7 5825u firmware
- amd ryzen 9 3900x firmware
- amd ryzen 9 3950x firmware
- amd ryzen 9 5900hs firmware
- amd ryzen 9 5900hx firmware
- amd ryzen 9 5980hs firmware
- amd ryzen 9 5980hx firmware
- amd ryzen threadripper 2920x firmware
- amd ryzen threadripper 2950x firmware
- amd ryzen threadripper 2970wx firmware
- amd ryzen threadripper 2990wx firmware
- amd ryzen threadripper 3960x firmware
- amd ryzen threadripper 3970x firmware
- amd ryzen threadripper 3990x firmware
- amd ryzen threadripper pro 3945wx firmware
- amd ryzen threadripper pro 3955wx firmware
- amd ryzen threadripper pro 3975wx firmware
- amd ryzen threadripper pro 3995wx firmware
- amd ryzen threadripper pro 5945wx firmware
- amd ryzen threadripper pro 5955wx firmware
- amd ryzen threadripper pro 5965wx firmware
- amd ryzen threadripper pro 5975wx firmware
- amd ryzen threadripper pro 5995wx firmware
- amd ryzen™ series
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-26351 is a medium vulnerability (CVSS 5.5) in Amd Athlon™ Series, published May 12, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.21%, the 11th percentile. No source names a fixed version.