IrfanView version 4.44 (32bit) with FPX Plugin 4.46 allows attackers to execute arbitrary code or cause a denial of service via a crafted .fpx file, related to a "User Mode Write AV starting at FPX!DE_Decode+0x0000000000000cdb."
https://github.com/wlinzi/security_advisories/tree/master/CVE-2017-9875