CVE-2026-117555
MEDIUM
NVD
CVSS Score
6.1
Severity
MEDIUM
Published
Oct 27, 2026
Vendor
unknown
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.
References
- https://github.com/GreycLab/CImg
- https://github.com/GreycLab/CImg/blob/v.4.0.6/CImg.h#L55659
- https://github.com/GreycLab/CImg/commit/b9ed613d9984f9caa1617b97e1db7e429cf14fd5
- https://github.com/GreycLab/CImg/issues/495
- https://www.vulncheck.com/advisories/greyclab-cimg-through-4.0.6-heap-out-of-bounds-read-via-integer-overflow-in-load-bmp