{"id":"CVE-2026-116724","aliases":[],"title":"FLTK through 1.4.5 Heap Buffer Overflow via Fl_BMP_Image Integer Overflow","titleSource":"VulnCheck","descriptionSource":"VulnCheck","products":[{"vendor":"fltk","name":"fltk","platforms":[],"versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.4.5","versionType":"custom"}],"defaultStatus":"unaffected","source":"VulnCheck","url":"https://www.cve.org/CVERecord?id=CVE-2026-116724"}],"remediation":[],"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heap.","severity":"high","score":8.5,"published":"2026-10-26T21:52:28.153Z","modified":"2026-10-26T21:52:28.153Z","withdrawn":false,"knownExploited":false,"affected":[],"references":["https://github.com/fltk/fltk/issues/1632","https://github.com/fltk/fltk","https://github.com/fltk/fltk/commit/3a049d8262dc759cf9737339420e8457e24c0cb1","https://github.com/fltk/fltk/blob/release-1.4.5/src/Fl_BMP_Image.cxx#L281-L286","https://hackmd.io/@haindpwn/fltk-bmp-image-stack-heap-overflow","https://www.vulncheck.com/advisories/fltk-through-1.4.5-heap-buffer-overflow-via-fl-bmp-image-integer-overflow"],"sources":[{"name":"CVE","id":"CVE-2026-116724","modified":"2026-10-26T21:52:28.153Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-116724"}],"assessments":[{"source":"VulnCheck","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":8.5},{"source":"VulnCheck","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":7.8}],"sourceAffected":[],"kev":{"status":"not-listed","checkedAt":"2026-10-28T23:45:31.121Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}