diff --git a/include/asterisk/event.h b/include/asterisk/event.h
index 73f121c97d..90e27b2f6c 100644
--- a/include/asterisk/event.h
+++ b/include/asterisk/event.h
@@ -743,6 +743,13 @@ void *ast_event_iterator_get_ie_raw(struct ast_event_iterator *iterator);
  */
 uint16_t ast_event_iterator_get_ie_raw_payload_len(struct ast_event_iterator *iterator);
 
+/*!
+ * \brief Get the minimum length of an ast_event.
+ *
+ * \return minimum amount of memory that will be consumed by any ast_event.
+ */
+size_t ast_event_minimum_length(void);
+
 #if defined(__cplusplus) || defined(c_plusplus)
 }
 #endif
diff --git a/main/event.c b/main/event.c
index fad8e66ee7..a62e736376 100644
--- a/main/event.c
+++ b/main/event.c
@@ -1769,3 +1769,8 @@ int ast_event_init(void)
 
 	return 0;
 }
+
+size_t ast_event_minimum_length(void)
+{
+	return sizeof(struct ast_event);
+}
diff --git a/res/ais/evt.c b/res/ais/evt.c
index 88b8a6ffd7..8d11c64731 100644
--- a/res/ais/evt.c
+++ b/res/ais/evt.c
@@ -135,6 +135,13 @@ void evt_event_deliver_cb(SaEvtSubscriptionIdT sub_id,
 		return;
 	}
 
+	if (event_datalen < ast_event_minimum_length()) {
+		ast_debug(1, "Ignoring event that's too small. %u < %u\n",
+			(unsigned int) event_datalen,
+			(unsigned int) ast_event_minimum_length());
+		return;
+	}
+
 	ais_res = saEvtEventDataGet(event_handle, event, &len);
 	if (ais_res != SA_AIS_OK) {
 		ast_log(LOG_ERROR, "Error retrieving event payload: %s\n",