| Name | CVE-2026-71974 |
| Description | U-Boot before 2026.10-rc3 contains an out-of-bounds write vulnerability in read_slotted_partition() that fails to validate image size against partition bounds. Attackers with physical access can supply crafted boot media with oversized headers to write past the load buffer into bootloader memory on devices without Android Verified Boot protection. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| u-boot (PTS) | bookworm, bookworm (security) | 2023.01+dfsg-2+deb12u3 | fixed |
| trixie | 2025.01-3+deb13u1 | fixed |
| forky, sid | 2025.01-3.2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| u-boot | source | (unstable) | (not affected) | | | |
Notes
- u-boot <not-affected> (Vulnerable code introduced later)
Introduced with: https://github.com/u-boot/u-boot/commit/abadcda24b100b8eb0f138085cca6595518cec85 (v2025.04-rc1)
Fixed by: https://github.com/u-boot/u-boot/commit/35432ef6fe2c79ab72709966e64815a45eb55c76 (v2026.10-rc3)