CVE-2021-26390
MEDIUMCVSS 6.2/10EPSS 0.23%
Last modified
CVE-2021-26390 is a medium-severity vulnerability rated 6.2/10 on the CVSS scale. A malicious or compromised UApp or ABL may coerce the bootloader into corrupting arbitrary memory potentially leading to loss of integrity of data.. EPSS estimates a 0.23% chance of exploitation in the next 30 days.
Description
A malicious or compromised UApp or ABL may coerce the bootloader into corrupting arbitrary memory potentially leading to loss of integrity of data.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Amd | Ryzen 5 2600 Firmware | All versions |
| Amd | Ryzen 5 2600x Firmware | All versions |
| Amd | Ryzen 5 2700x Firmware | All versions |
| Amd | Ryzen 5 2700 Firmware | All versions |
| Amd | Ryzen 5 3600 Firmware | All versions |
| Amd | Ryzen 5 3600x Firmware | All versions |
| Amd | Ryzen 7 3700x Firmware | All versions |
| Amd | Ryzen 7 3800x Firmware | All versions |
| Amd | Ryzen 9 3900x Firmware | All versions |
| Amd | Ryzen 9 3950x Firmware | All versions |
| Amd | Ryzen 9 5950x Firmware | All versions |
| Amd | Ryzen 9 5900x Firmware | All versions |
| Amd | Ryzen 7 5800x Firmware | All versions |
| Amd | Ryzen 7 5700g Firmware | All versions |
| Amd | Ryzen 7 5700ge Firmware | All versions |
| Amd | Ryzen 5 5600g Firmware | All versions |
| Amd | Ryzen 5 5600x Firmware | All versions |
| Amd | Ryzen 5 5600ge Firmware | All versions |
| Amd | Ryzen 3 5300g Firmware | All versions |
| Amd | Ryzen 3 5300ge Firmware | All versions |
| Amd | Ryzen Threadripper 2990wx Firmware | All versions |
| Amd | Ryzen Threadripper 2970wx Firmware | All versions |
| Amd | Ryzen Threadripper 2950x Firmware | All versions |
| Amd | Ryzen Threadripper 2920x Firmware | All versions |
| Amd | Ryzen Threadripper 3970x Firmware | All versions |
| Amd | Ryzen Threadripper Pro 5995wx Firmware | All versions |
| Amd | Ryzen Threadripper Pro 5975wx Firmware | All versions |
| Amd | Ryzen Threadripper Pro 5965wx Firmware | All versions |
| Amd | Ryzen Threadripper Pro 5955wx Firmware | All versions |
| Amd | Ryzen Threadripper Pro 5945wx Firmware | All versions |
| Amd | Ryzen 7 3750h Firmware | All versions |
| Amd | Ryzen 7 3700u Firmware | All versions |
| Amd | Ryzen 5 3550h Firmware | All versions |
| Amd | Ryzen 5 3500u Firmware | All versions |
| Amd | Ryzen 3 3300u Firmware | All versions |
| Amd | Ryzen 3 3200u Firmware | All versions |
| Amd | Athlon 300u Firmware | All versions |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-26390?
A malicious or compromised UApp or ABL may coerce the bootloader into corrupting arbitrary memory potentially leading to loss of integrity of data.
How severe is CVE-2021-26390?
CVE-2021-26390 has a CVSS score of 6.2/10 (MEDIUM severity). The EPSS model estimates a 0.23% probability of exploitation in the next 30 days.
How do I fix CVE-2021-26390?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-26390?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST