CVE-2026-71972

MEDIUM

U-Boot through 2026.10-rc5 contains an out-of-bounds write vulnerability in the video_display_rle8_bitmap function in drivers/video/video_bmp.c. Attackers can supply a crafted RLE8-compressed BMP image to corrupt memory adjacent to the framebuffer and crash the bootloader.

CVSS v3.1 Score

5.9

MEDIUM

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H

Attack Vector

ADJACENT_NETWORK

Complexity

HIGH

Privileges

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

LOW

Availability

HIGH

Published: 9/29/2026Modified: 9/30/2026

Related Intelligence (0)

No articles currently reference this CVE.

References (4)

https://github.com/u-boot/u-boot https://github.com/u-boot/u-boot/blob/v2026.10-rc5/drivers/video/video_bmp.c#L126 https://github.com/u-boot/u-boot/commit/5201e83342d64c2f438ea35158575f28225e752e https://www.vulncheck.com/advisories/u-boot-through-2026.10-rc5-out-of-bounds-write-in-bmp-rle8-decoder