HIGHVulnerability
Verified
Global

NVD HIGH: CVE-2026-116723 — FLTK through 1.4.5 contains a stack-based buffer overflow vulnerability in Fl_BM...

·Source: NIST NVD

Updated:

Executive Summary

FLTK through 1.4.5 contains a stack-based buffer overflow vulnerability in Fl_BMP_Image::load_bmp_() that allows attackers to corrupt stack memory by supplying an oversized BMP colors_used field. Attackers can craft BMP or ICO files with colors_used above 256 to overflow the 768-byte colormap array, causing crashes or potential code execution.

Analysis

FLTK through 1.4.5 contains a stack-based buffer overflow vulnerability in Fl_BMP_Image::load_bmp_() that allows attackers to corrupt stack memory by supplying an oversized BMP colors_used field. Attackers can craft BMP or ICO files with colors_used above 256 to overflow the 768-byte colormap array, causing crashes or potential code execution. CVSS Score: 7.8. Published: 2026-10-26T22:16:55.923.

Indicators of Compromise (1)

CVE (1)
CVE-2026-116723
NVDMITRE CVE
Source Attribution

Originally published by NIST NVD on Oct 26, 2026. Verified by: NIST.

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