{"id":"CVE-2026-117555","aliases":["DEBIAN-CVE-2026-117555","EUVD-2026-110833","GHSA-88mq-c93j-j2w3","UBUNTU-CVE-2026-117555"],"status":"published","title":"GreycLab CImg through 4.0.6 Heap Out-of-Bounds Read via Integer Overflow in _load_bmp()","description":"CImg through 4.0.6 contains a heap out-of-bounds read vulnerability in the _load_bmp() function of CImg.h caused by an integer overflow in the row byte count. Attackers can supply a crafted BMP file with a large header width that wraps dx_bytes, causing crashes or heap memory disclosure into the decoded image.","severity":{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00129,"percentile":0.02592,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-190"],"published":"2026-10-27T13:07:51Z","modified":"2026-11-04T02:30:48Z","affected":[{"source":"osv","ecosystem":"Debian:12","package":"cimg","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.1+dfsg-1","3.2.1+dfsg-2","3.5.0+dfsg-1","3.5.2+dfsg-1","3.5.2+dfsg-2","4.0.4+dfsg-1"]},{"source":"osv","ecosystem":"Debian:13","package":"cimg","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.5.2+dfsg-1","3.5.2+dfsg-1+deb13u1","3.5.2+dfsg-2","4.0.4+dfsg-1"]},{"source":"osv","ecosystem":"Debian:14","package":"cimg","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.5.2+dfsg-1","3.5.2+dfsg-2","4.0.4+dfsg-1"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"cimg","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6.4+dfsg-1build1","1.6.5+dfsg-1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"cimg","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.7.9+dfsg-2","1.7.9+dfsg-2build1","1.7.9+dfsg-2ubuntu0.18.04.1","1.7.9+dfsg-2ubuntu0.18.04.2","1.7.9+dfsg-2ubuntu0.18.04.2+esm1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"cimg","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.4.5+dfsg-1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:22.04:LTS","package":"cimg","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.9.4+dfsg-2","2.9.4+dfsg-3","2.9.4+dfsg-3ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:24.04:LTS","package":"cimg","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.1+dfsg-1","3.2.1+dfsg-1ubuntu0.24.04.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"cimg","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.5.2+dfsg-1build1","3.5.2+dfsg-2"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"cimg","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.5.2+dfsg-1","3.5.2+dfsg-1build1"]}],"products":[{"vendor":"greyclab","product":"cimg"}],"references":[{"url":"https://github.com/GreycLab/CImg/issues/495","tags":["issue-tracking","report"]},{"url":"https://github.com/GreycLab/CImg","tags":["product","package","report"]},{"url":"https://github.com/GreycLab/CImg/commit/b9ed613d9984f9caa1617b97e1db7e429cf14fd5","tags":["patch","fix","report"]},{"url":"https://github.com/GreycLab/CImg/blob/v.4.0.6/CImg.h#L55659","tags":["technical-description","article","report"]},{"url":"https://www.vulncheck.com/advisories/greyclab-cimg-through-4.0.6-heap-out-of-bounds-read-via-integer-overflow-in-load-bmp","tags":["third-party-advisory","advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-117555","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-88mq-c93j-j2w3"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/117xxx/CVE-2026-117555.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-117555","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-117555","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-117555","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-117555","title":"GreycLab CImg through 4.0.6 Heap Out-of-Bounds Read via Integer Overflow in _load_bmp()","description":"CImg through 4.0.6 contains a heap out-of-bounds read vulnerability in the _load_bmp() function of CImg.h caused by an integer overflow in the row byte count. Attackers can supply a crafted BMP file with a large header width that wraps dx_bytes, causing crashes or heap memory disclosure into the decoded image.","status":"published","published":"2026-10-27T13:07:51.02Z","modified":"2026-11-02T19:13:16.93Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T20:51:24.336573Z"}],"euvd":[{"id":"EUVD-2026-110833","description":"CImg through 4.0.6 contains a heap out-of-bounds read vulnerability in the _load_bmp() function of CImg.h caused by an integer overflow in the row byte count. Attackers can supply a crafted BMP file with a large header width that wraps dx_bytes, causing crashes or heap memory disclosure into the decoded image.","status":"published","published":"2026-10-27T13:07:51Z","modified":"2026-11-02T19:13:16Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-03T05:08:38.228652Z"}],"ghsa":[{"id":"GHSA-88mq-c93j-j2w3","title":"CImg through 4.0.6 contains a heap out-of-bounds read vulnerability in the _load_bmp() function...","description":"CImg through 4.0.6 contains a heap out-of-bounds read vulnerability in the _load_bmp() function of CImg.h caused by an integer overflow in the row byte count. Attackers can supply a crafted BMP file with a large header width that wraps dx_bytes, causing crashes or heap memory disclosure into the decoded image.","status":"published","published":"2026-10-27T15:32:43Z","modified":"2026-10-27T15:32:48Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","level":"medium"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T15:14:29.466605Z"}],"nvd":[{"id":"CVE-2026-117555","description":"CImg through 4.0.6 contains a heap out-of-bounds read vulnerability in the _load_bmp() function of CImg.h caused by an integer overflow in the row byte count. Attackers can supply a crafted BMP file with a large header width that wraps dx_bytes, causing crashes or heap memory disclosure into the decoded image.","status":"published","published":"2026-10-27T14:16:36.187Z","modified":"2026-11-02T20:17:35.417Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-190"],"updated_at":"2026-11-03T00:02:37.317866Z"}],"osv":[{"id":"CVE-2026-117555","title":"GreycLab CImg through 4.0.6 Heap Out-of-Bounds Read via Integer Overflow in _load_bmp()","description":"CImg through 4.0.6 contains a heap out-of-bounds read vulnerability in the _load_bmp() function of CImg.h caused by an integer overflow in the row byte count. Attackers can supply a crafted BMP file with a large header width that wraps dx_bytes, causing crashes or heap memory disclosure into the decoded image.","status":"published","published":"2026-10-27T13:07:51.02Z","modified":"2026-11-04T07:20:18.2493542Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-190"],"updated_at":"2026-11-04T08:02:55.84884Z"},{"id":"DEBIAN-CVE-2026-117555","description":"CImg through 4.0.6 contains a heap out-of-bounds read vulnerability in the _load_bmp() function of CImg.h caused by an integer overflow in the row byte count. Attackers can supply a crafted BMP file with a large header width that wraps dx_bytes, causing crashes or heap memory disclosure into the decoded image.","status":"published","published":"2026-10-27T14:16:36.187Z","modified":"2026-11-03T10:00:31.751608127Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"}],"updated_at":"2026-11-03T10:27:58.933618Z"},{"id":"UBUNTU-CVE-2026-117555","description":"CImg through 4.0.6 contains a heap out-of-bounds read vulnerability in the _load_bmp() function of CImg.h caused by an integer overflow in the row byte count. Attackers can supply a crafted BMP file with a large header width that wraps dx_bytes, causing crashes or heap memory disclosure into the decoded image.","status":"published","published":"2026-10-27T14:16:00Z","modified":"2026-10-28T20:17:46.248149071Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","level":"medium"},{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T16:56:00.081948Z"}]}}