The ReadHDRImage function in coders/hdr.c in ImageMagick 6.x and 7.x allows remote attackers to cause a denial of service (infinite loop) via a crafted HDR file.
Exploitability
AV:LAC:LPR:NUI:RScope
S:UImpact
C:NI:NA:H5.5/CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H