CVE-2026-71972

Description

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.

References

• 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