VulnerabilityModified
CVE-2021-27097
The boot loader in Das U-Boot before 2021.04-rc2 mishandles a modified FIT.
HIGH 7.8EPSS 1.07%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.07%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The boot loader in Das U-Boot before 2021.04-rc2 mishandles a modified FIT.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 1.07% probability · 63th percentile
- CISA KEV
- Not listed
- Affected
- denx/u-boot
- Source
- cve@mitre.org
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
- https://lists.debian.org/debian-lts-announce/2025/09/msg00037.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.