In OpenCV 3.3.1 (corresponding with OpenCV-Python 3.3.1.11), a heap-based buffer over-read exists in the function cv::HdrDecoder::checkSignature in modules/imgcodecs/src/grfmt_hdr.cpp.
{ "nvd_published_at": null, "github_reviewed_at": "2021-10-07T20:17:07Z", "severity": "HIGH", "github_reviewed": true, "cwe_ids": [ "CWE-125" ] }