A vulnerability classified as problematic was found in OpenCV wechat_qrcode Module up to 4.7.0. Affected by this vulnerability is the function DecodedBitStreamParser::decodeByteSegment of the file qrcode/decoder/decoded_bit_stream_parser.cpp. The manipulation leads to null pointer dereference. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-228547.
https://vuldb.com/?ctiid.228547
https://github.com/opencv/opencv_contrib/pull/3480
https://gist.github.com/GZTimeWalker/3ca70a8af2f5830711e9cccc73fb5270