XnView Classic FLI File heap-based overflow

{
                    "vendor": "XnView",
                    "product": "Classic",
                    "versions": [
                        {
                            "version": "2.52.5",
                            "status": "affected"
                        },
                        {
                            "version": "2.52.6",
                            "status": "unaffected"
                        }
                    ],
                    "cpes": [
                        "cpe:2.3:a:xnview:classic:*:*:*:*:*:*:*:*"
                    ],
                    "modules": [
                        "FLI File Parser"
                    ]
                }