CVE-2026-71972 U-Boot through 2026.10-rc5 Out-of-Bounds Write in BMP RLE8 Decoder
Attackers can crash the bootloader or potentially execute code by supplying a crafted RLE8-compressed BMP image to U-Boot.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-71972?
CVE-2026-71972 is a medium-severity memory corruption vulnerability in u-boot, published on 29 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-787
Which versions are affected by CVE-2026-71972?
How do I fix CVE-2026-71972?
No fix has been published for CVE-2026-71972 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-71972 being exploited?
There is no known exploitation of CVE-2026-71972 in the wild and no public exploit code.
Sources
Also known as AZL-105726, DEBIAN-CVE-2026-71972, GHSA-9fh8-rw5q-p54v, UBUNTU-CVE-2026-71972.