CVE-2021-27097
HIGHCVSS 7.8/10EPSS 1.04%
Last modified
CVE-2021-27097 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. The boot loader in Das U-Boot before 2021.04-rc2 mishandles a modified FIT.. EPSS estimates a 1.04% chance of exploitation in the next 30 days.
Description
The boot loader in Das U-Boot before 2021.04-rc2 mishandles a modified FIT.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Denx | U-Boot | <= 2021.01 | — |
| Denx | U-Boot | 2021.04 | Rc1 |
References
- https://github.com/u-boot/u-boot/commit/6f3c2d8aa5e6cbd80b5e869bbbddecb66c329d01Patch, Third Party Advisory
- https://github.com/u-boot/u-boot/commit/8a7d4cf9820ea16fabd25a6379351b4dc291204bPatch, Third Party Advisory
- https://github.com/u-boot/u-boot/commit/b6f4c757959f8850e1299a77c8e5713da78e8ec0Patch, Third Party Advisory
- https://github.com/u-boot/u-boot/commit/6f3c2d8aa5e6cbd80b5e869bbbddecb66c329d01Patch, Third Party Advisory
- https://github.com/u-boot/u-boot/commit/8a7d4cf9820ea16fabd25a6379351b4dc291204bPatch, Third Party Advisory
- https://github.com/u-boot/u-boot/commit/b6f4c757959f8850e1299a77c8e5713da78e8ec0Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-27097?
The boot loader in Das U-Boot before 2021.04-rc2 mishandles a modified FIT.
How severe is CVE-2021-27097?
CVE-2021-27097 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 1.04% probability of exploitation in the next 30 days.
How do I fix CVE-2021-27097?
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-2021-27097?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST