Is CVE-2026-116724 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-116724?

CVE-2026-116724 has a CVSS v3 severity of HIGH (7.8).

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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.