Vulnerability Description
The boot loader in Das U-Boot before 2021.04-rc2 mishandles a modified FIT.
CVSS Score
7.8
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Denx | U-Boot | <= 2021.01 |
References
- https://github.com/u-boot/u-boot/commit/6f3c2d8aa5e6cbd80b5e869bbbddecb66c329d01PatchThird Party Advisory
- https://github.com/u-boot/u-boot/commit/8a7d4cf9820ea16fabd25a6379351b4dc291204bPatchThird Party Advisory
- https://github.com/u-boot/u-boot/commit/b6f4c757959f8850e1299a77c8e5713da78e8ec0PatchThird Party Advisory
- https://github.com/u-boot/u-boot/commit/6f3c2d8aa5e6cbd80b5e869bbbddecb66c329d01PatchThird Party Advisory
- https://github.com/u-boot/u-boot/commit/8a7d4cf9820ea16fabd25a6379351b4dc291204bPatchThird Party Advisory
- https://github.com/u-boot/u-boot/commit/b6f4c757959f8850e1299a77c8e5713da78e8ec0PatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2025/09/msg00037.html
FAQ
What is CVE-2021-27097?
CVE-2021-27097 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-27097?
Check the references section above for vendor advisories and patch information. Affected products include: Denx U-Boot.