diff --git a/libavformat/flvdec.c b/libavformat/flvdec.c
index 6bd6c8c944..60d1a5c654 100644
--- a/libavformat/flvdec.c
+++ b/libavformat/flvdec.c
@@ -682,7 +682,11 @@ static int amf_parse_object(AVFormatContext *s, AVStream *astream,
             av_dict_set(&s->metadata, key, str_val, 0);
         } else if (amf_type == AMF_DATA_TYPE_STRING) {
             av_dict_set(&s->metadata, key, str_val, 0);
-        } else if (amf_type == AMF_DATA_TYPE_DATE) {
+        } else if (   amf_type == AMF_DATA_TYPE_DATE
+                   && isfinite(date.milliseconds)
+                   && date.milliseconds > INT64_MIN/1000
+                   && date.milliseconds < INT64_MAX/1000
+                  ) {
             // timezone is ignored, since there is no easy way to offset the UTC
             // timestamp into the specified timezone
             avpriv_dict_set_timestamp(&s->metadata, key, 1000 * (int64_t)date.milliseconds);