{"id":"CVE-2026-116724","state":"PUBLISHED","title":"FLTK through 1.4.5 Heap Buffer Overflow via Fl_BMP_Image Integer Overflow","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.","publishedAt":"2026-10-26T21:52:28.153Z","updatedAt":"2026-10-26T21:52:28.153Z","severity":{"score":8.5,"label":"High","version":"4.0","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","source":"VulnCheck"},"assigner":"VulnCheck","products":["fltk fltk"],"affected":[{"vendor":"fltk","product":"fltk","packageURL":"pkg:github/fltk/fltk","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.4.5","versionType":"custom"}],"repo":"https://github.com/fltk/fltk"}],"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"],"weaknesses":["CWE-190"],"ingestedAt":"2026-10-29T20:10:43.281Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/116xxx/CVE-2026-116724.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-116724","state":"PUBLISHED","datePublished":"2026-10-26T21:52:28.153Z","dateUpdated":"2026-10-26T21:52:28.153Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-10-26T20:23:34.151Z"},"containers":{"cna":{"title":"FLTK through 1.4.5 Heap Buffer Overflow via Fl_BMP_Image Integer Overflow","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"fltk","product":"fltk","packageURL":"pkg:github/fltk/fltk","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.4.5","versionType":"custom"}],"repo":"https://github.com/fltk/fltk"}],"references":[{"url":"https://github.com/fltk/fltk/issues/1632","tags":["issue-tracking"],"name":"GitHub Issue #1632"},{"url":"https://github.com/fltk/fltk","tags":["product"]},{"url":"https://github.com/fltk/fltk/commit/3a049d8262dc759cf9737339420e8457e24c0cb1","tags":["patch"]},{"url":"https://github.com/fltk/fltk/blob/release-1.4.5/src/Fl_BMP_Image.cxx#L281-L286","tags":["technical-description"]},{"url":"https://hackmd.io/@haindpwn/fltk-bmp-image-stack-heap-overflow","tags":["third-party-advisory"]},{"url":"https://www.vulncheck.com/advisories/fltk-through-1.4.5-heap-buffer-overflow-via-fl-bmp-image-integer-overflow","name":"VulnCheck Advisory: FLTK through 1.4.5 Heap Buffer Overflow via Fl_BMP_Image Integer Overflow","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"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","attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"PASSIVE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.5,"baseSeverity":"HIGH"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":7.8,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-190","lang":"en","description":"Integer Overflow or Wraparound","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-10-26T21:52:28.153Z"},"datePublic":"2026-10-22T00:00:00.000Z","cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:fltk_project:fltk:*:*:*:*:*:*:*:*","versionEndIncluding":"1.4.5"}]}]}],"credits":[{"lang":"en","value":"HaiND from the Post and Telecommunication Institute of Technology","type":"finder"}],"x_generator":{"engine":"vulncheck-endgame"}}}}}