The following packages have been uploaded to the Cygwin distribution: * libpng12-1.2.56-1 * libpng12-devel-1.2.56-1 libpng is the official reference library for the Portable Network Graphics (PNG) image format. This release includes a fix for CVE-2015-8540: https://bugzilla.redhat.com/show_bug.cgi?id=1291312 -- Yaakov