CVE-2016-5253

CVE-2016-5253 describes a local privilege escalation vulnerability in the Mozilla Firefox Updater on Windows, affecting versions prior to 48.0. An attacker could exploit this by manipulating the callback application-path parameter and using a hard link to write to arbitrary files. This vulnerability has a CVSSv3 score of 4.7 (Medium), indicating a low attack complexity and requiring local access, with a high impact on integrity but no impact on confidentiality or availability. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.