Medium 5.9Published Sep 29, 2026

CVE-2026-71972U-Boot through 2026.10-rc5 Out-of-Bounds Write in BMP RLE8 Decoder

Updated under an hour ago (Oct 26, 2026, 2:20 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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: 5.9 MEDIUM (v3.1, CNA)CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
Weakness (CWE): CWE-787
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Awaiting Analysis
Record last updated: Sep 30, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

u-boot u-boot u_boot:u_boot (from the name)	through 2026.10-rc5	CNA record

References

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.