diff -up gv-3.7.4/src/resource.c.ovfl gv-3.7.4/src/resource.c
--- gv-3.7.4/src/resource.c.ovfl	2012-03-29 18:03:50.000000000 +0200
+++ gv-3.7.4/src/resource.c	2022-10-15 17:56:20.102379625 +0200
@@ -230,15 +230,15 @@ resource_buildDatabase (
   s = resource_getResource(db,app_class,app_name, "international",0);
   if (s == NULL || !strcasecmp(s, "False"))
   {
-     sprintf(locale1, "noint:%s%s", loc_lang, loc_terr);
-     sprintf(locale2, "noint:%s", loc_lang);
+     snprintf(locale1, 100, "noint:%s%s", loc_lang, loc_terr);
+     snprintf(locale2, 100, "noint:%s", loc_lang);
      strcpy(locale3, "C");
   }
   else
   {
      strcpy(locale1, locale);
-     sprintf(locale2, "%s%s%s", loc_lang, loc_terr, loc_cs);
-     sprintf(locale3, "%s%s", loc_lang, loc_cs);
+     snprintf(locale2, 100, "%s%s%s", loc_lang, loc_terr, loc_cs);
+     snprintf(locale3, 100, "%s%s", loc_lang, loc_cs);
   }
 
   if (debug_p)