Medium severity · published Sep 29, 2026
CVE-2026-71972
U-Boot through 2026.10-rc5 Out-of-Bounds Write in BMP RLE8 Decoder
5.9
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
Attack vector
Adjacent
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 13% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
UB
u-boot · u-boot
through 2026.10-rc5 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-71972
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-71972
patch
https://github.com/u-boot/u-boot/commit/5201e83342d64c2f438ea35158575f28225e752e
technical-description
https://github.com/u-boot/u-boot/blob/v2026.10-rc5/drivers/video/video_bmp.c#L126
product
https://github.com/u-boot/u-boot
third-party-advisory
https://www.vulncheck.com/advisories/u-boot-through-2026.10-rc5-out-of-bounds-write-in-bmp-rle8-decoder
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