Out-of-bounds read in Progress MarkLogic Server

{
                    "vendor": "Progress Software Corporation",
                    "product": "MarkLogic Server",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "12.0.0",
                            "lessThan": "12.1.0",
                            "versionType": "custom"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }