The JPEG 2000 codec (jp2.c) in OpenJPEG before 1.5 allows remote attackers to execute arbitrary code via a crafted palette index in a CMAP record of a JPEG image, which triggers memory corruption, aka "out-of heap-based buffer write."
Exploit prediction scoring system (EPSS) score
EPSS Score 0.038
EPSS Ranking 87.6%