Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2021-27097

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

Published

2021-02-17T23:15:13.653

Last Modified

2025-11-03T19:15:40.060

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.8 (HIGH)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:P/I:P/A:P

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

8.6

Impact Score

6.4

Weaknesses

Type: Primary
NVD-CWE-noinfo

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	denx	u-boot	≤ 2021.01	Yes
Application	denx	u-boot	2021.04	Yes

References

https://github.com/u-boot/u-boot/commit/6f3c2d8aa5e6cbd80b5e869bbbddecb66c329d01 Patch, Third Party Advisory ([email protected])
https://github.com/u-boot/u-boot/commit/8a7d4cf9820ea16fabd25a6379351b4dc291204b Patch, Third Party Advisory ([email protected])
https://github.com/u-boot/u-boot/commit/b6f4c757959f8850e1299a77c8e5713da78e8ec0 Patch, Third Party Advisory ([email protected])
https://github.com/u-boot/u-boot/commit/6f3c2d8aa5e6cbd80b5e869bbbddecb66c329d01 Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/u-boot/u-boot/commit/8a7d4cf9820ea16fabd25a6379351b4dc291204b Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/u-boot/u-boot/commit/b6f4c757959f8850e1299a77c8e5713da78e8ec0 Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2025/09/msg00037.html (af854a3a-2127-422b-91ae-364da2661108)