Quick answers
- Is CVE-2026-71972 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-71972 being exploited in the wild.
- How severe is CVE-2026-71972?
- Medium severity, with a CVSS score of 5.9, published 29 September 2026.
- Which products and versions are affected?
- U-Boot through 2026.10-rc5.
- Is there a fix for CVE-2026-71972?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-71972 attacked?
- It is attacked with local access, in device firmware.
- Am I affected by CVE-2026-71972?
- Check whether you run U-Boot at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The video_display_rle8_bitmap function in drivers/video/video_bmp.c contains an out-of-bounds write vulnerability when processing RLE8-compressed BMP images. An attacker can craft a specially formatted bitmap to trigger memory corruption adjacent to the framebuffer, causing a denial of service (bootloader crash). The vulnerability requires the attacker to supply a crafted image file to the affected device.
Affected products
- U-Boot U-Boot through 2026.10-rc5
Timeline
- 2026-09-29: disclosed