{"id":"CVE-2026-117555","aliases":[],"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image.","severity":"medium","score":6.9,"published":"2026-10-27T13:07:51.020Z","modified":"2026-10-27T13:07:51.020Z","withdrawn":false,"knownExploited":false,"affected":[],"references":["https://github.com/GreycLab/CImg/issues/495","https://github.com/GreycLab/CImg","https://github.com/GreycLab/CImg/commit/b9ed613d9984f9caa1617b97e1db7e429cf14fd5","https://github.com/GreycLab/CImg/blob/v.4.0.6/CImg.h#L55659","https://www.vulncheck.com/advisories/greyclab-cimg-through-4.0.6-heap-out-of-bounds-read-via-integer-overflow-in-load-bmp"],"sources":[{"name":"CVE","id":"CVE-2026-117555","modified":"2026-10-27T13:07:51.020Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-117555"}],"assessments":[{"source":"CNA","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","score":6.9},{"source":"CNA","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","score":6.1}]}