High severity7.8NVD Advisory· Published Oct 26, 2026
CVE-2026-116724
CVE-2026-116724
Description
FLTK through 1.4.5 contains an integer overflow vulnerability in Fl_BMP_Image::load_bmp_() that causes undersized pixel buffer allocation from file-supplied width and height. Attackers can supply a crafted BMP or ICO file with large dimensions so row decoding writes file-derived data past the heap buffer, corrupting the application heap.
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Affected products
1Patches
Vulnerability mechanics
References
5- github.com/fltk/fltk/blob/release-1.4.5/src/Fl_BMP_Image.cxxnvd
- github.com/fltk/fltk/commit/3a049d8262dc759cf9737339420e8457e24c0cb1nvd
- github.com/fltk/fltk/issues/1632nvd
- hackmd.io/@haindpwn/fltk-bmp-image-stack-heap-overflownvd
- www.vulncheck.com/advisories/fltk-through-1.4.5-heap-buffer-overflow-via-fl-bmp-image-integer-overflownvd
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