Home/CVE/The boot loader in Das U-Boot before 2021.04-rc2 mishandles a modified FIT.
CVE

CVE-2021-27097

The boot loader in Das U-Boot before 2021.04-rc2 mishandles a modified FIT.

The boot loader in Das U-Boot before 2021.04-rc2 mishandles a modified FIT.

HIGH · CVSS 7.8 EPSS 0.00047
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
▤

Affected Products & Versions

2
denx u-boot<= 2021.01
denx u-bootall versions
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD17 Feb 2021 · 11:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
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
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