---
id: CVE-2026-71972
title: >-
  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
summary: >-
  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 f…
severity: medium
cvss: 5.9
cvssVector: 'CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H'
cwe:
  - CWE-787
vendor: u-boot
product: u-boot
affected:
  - u-boot <= 2026.10-rc5
published: '2026-09-29'
updated: '2026-09-29'
sourceUpdated: '2026-09-29T22:18:21.900'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-71972'
references:
  - url: 'https://github.com/u-boot/u-boot'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/u-boot/u-boot/blob/v2026.10-rc5/drivers/video/video_bmp.c#L126
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/u-boot/u-boot/commit/5201e83342d64c2f438ea35158575f28225e752e
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/u-boot-through-2026.10-rc5-out-of-bounds-write-in-bmp-rle8-decoder
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-29T21:49:08.269Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.