STDU Viewer 1.6.375 allows attackers to execute arbitrary code or cause a denial of service via a crafted .xps file, related to a "User Mode Write AV starting at Unknown Symbol @ 0x000000000479049b called from Unknown Symbol @ 0x000000000d89645b."
https://github.com/wlinzi/security_advisories/tree/master/CVE-2017-14572