CVE-2026-117555
mediumCImg 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.
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.
CVSS
6.1
6.1 (CVSS v3.1)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H Severity source: NVD CVSS v3.1 (disclosure@vulncheck.com)
Timeline (UTC)
Published: 2026-10-27 14:16
Modified: 2026-10-27 16:04
NVD status: Deferred
Last synced 1 day ago
Verified against the source API 2026-10-28 11:30 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/GreycLab/CImg disclosure@vulncheck.com
- https://github.com/GreycLab/CImg/blob/v.4.0.6/CImg.h#L55659 disclosure@vulncheck.com
- https://github.com/GreycLab/CImg/commit/b9ed613d9984f9caa1617b97e1db7e429cf14fd5 disclosure@vulncheck.com
- https://github.com/GreycLab/CImg/issues/495 disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/greyclab-cimg-through-4.0.6-heap-out-of-bounds-read-v... disclosure@vulncheck.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-28 11:30 UTC · record ↗