CVE-2021-26390
A malicious or compromised UApp or ABL may coerce the bootloader into corrupting arbitrary memory...
A malicious or compromised UApp or ABL may coerce the bootloader into corrupting arbitrary memory potentially leading to loss of integrity of data.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
A malicious or compromised UApp or ABL may coerce the bootloader into corrupting arbitrary memory potentially leading to loss of integrity of data.
- Record
CVE-2021-26390- CVSS 3.1
- 6.2 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - CVSS 2.0
- 4.9 Medium
AV:L/AC:L/Au:N/C:N/I:C/A:N - Updated
- 2026-11-02
CVE List No score
A malicious or compromised UApp or ABL may coerce the bootloader into corrupting arbitrary memory potentially leading to loss of integrity of data.
- Record
CVE-2021-26390- Updated
- 2026-11-02
EUVDEUVD-2021-13196 No score
A malicious or compromised UApp or ABL may coerce the bootloader into corrupting arbitrary memory potentially leading to loss of integrity of data.
- Record
EUVD-2021-13196- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-rrm7-mqj7-wfrw
A malicious or compromised UApp or ABL may coerce the bootloader into corrupting arbitrary memory...
A malicious or compromised UApp or ABL may coerce the bootloader into corrupting arbitrary memory potentially leading to loss of integrity of data.
- Record
GHSA-rrm7-mqj7-wfrw- CVSS 3.1
- 6.2 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
Affected products
- amd athlon 300u firmware
- amd athlon™ series
- amd ryzen 3 3200u firmware
- amd ryzen 3 3300u firmware
- amd ryzen 3 5300g firmware
- amd ryzen 3 5300ge firmware
- amd ryzen 5 2600 firmware
- amd ryzen 5 2600x firmware
- amd ryzen 5 2700 firmware
- amd ryzen 5 2700x firmware
- amd ryzen 5 3500u firmware
- amd ryzen 5 3550h firmware
Show 27 moreShow less
- amd ryzen 5 3600 firmware
- amd ryzen 5 3600x firmware
- amd ryzen 5 5600g firmware
- amd ryzen 5 5600ge firmware
- amd ryzen 5 5600x firmware
- amd ryzen 7 3700u firmware
- amd ryzen 7 3700x firmware
- amd ryzen 7 3750h firmware
- amd ryzen 7 3800x firmware
- amd ryzen 7 5700g firmware
- amd ryzen 7 5700ge firmware
- amd ryzen 7 5800x firmware
- amd ryzen 9 3900x firmware
- amd ryzen 9 3950x firmware
- amd ryzen 9 5900x firmware
- amd ryzen 9 5950x firmware
- amd ryzen threadripper 2920x firmware
- amd ryzen threadripper 2950x firmware
- amd ryzen threadripper 2970wx firmware
- amd ryzen threadripper 2990wx firmware
- amd ryzen threadripper 3970x 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-2021-26390 is a medium vulnerability (CVSS 6.2) in Amd Athlon 300u Firmware, published May 10, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.24%, the 15th percentile. No source names a fixed version.