The host is installed with Safari before 13.1.2 on Apple Mac OS X 10.13.6, 10.14.6 or 10.15.x before 10.15.6 and is prone to an out-of-bounds read vulnerability. A flaw is present in the application, which fails to properly handle an input validation issue. Successful exploitation may allow a remote attacker to cause unexpected application termination or arbitrary code execution.