The ANI parser in Microsoft Windows before 7 on the x86 platform, as used in Internet Explorer and other applications, allows remote attackers to cause a denial of service (memory and CPU consumption) via a crafted biClrUsed value in the BITMAPINFO header of a .ANI file.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.305
EPSS Ranking 96.6%