IrfanView version 4.44 (32bit) with PDF plugin version 4.43 allows attackers to cause a denial of service or possibly have unspecified other impact via a crafted .pdf file, related to a "Read Access Violation starting at PDF!xmlGetGlobalState+0x000000000007dfa5."
https://github.com/wlinzi/security_advisories/tree/master/CVE-2017-15254