diff --git a/wpa_supplicant/events.c b/wpa_supplicant/events.c
index 16f8b62a6..1875be98e 100644
--- a/wpa_supplicant/events.c
+++ b/wpa_supplicant/events.c
@@ -427,6 +427,11 @@ wpa_supplicant_select_bss_wpa(struct wpa_supplicant *wpa_s,
 			continue;
 		}
 
+		if (ssid_len == 0) {
+			wpa_printf(MSG_DEBUG, "   skip - SSID not known");
+			continue;
+		}
+
 		if (wpa_ie_len == 0 && rsn_ie_len == 0) {
 			wpa_printf(MSG_DEBUG, "   skip - no WPA/RSN IE");
 			continue;
@@ -517,6 +522,11 @@ wpa_supplicant_select_bss_non_wpa(struct wpa_supplicant *wpa_s,
 			continue;
 		}
 
+		if (ssid_len == 0) {
+			wpa_printf(MSG_DEBUG, "   skip - SSID not known");
+			continue;
+		}
+
 		for (ssid = group; ssid; ssid = ssid->pnext) {
 			int check_ssid = ssid->ssid_len != 0;