diff --git a/3rdparty/rcheevos/src/rc_client.c b/3rdparty/rcheevos/src/rc_client.c
index db8ab8bccd4b6..fc09c7d346958 100644
--- a/3rdparty/rcheevos/src/rc_client.c
+++ b/3rdparty/rcheevos/src/rc_client.c
@@ -578,7 +578,13 @@ static int rc_client_get_image_url(char buffer[], size_t buffer_size, int image_
   image_request.image_name = image_name;
   result = rc_api_init_fetch_image_request(&request, &image_request);
   if (result == RC_OK)
-    snprintf(buffer, buffer_size, "%s", request.url);
+  {
+    const size_t url_length = strlen(request.url);
+    if (url_length >= buffer_size)
+      result = RC_INSUFFICIENT_BUFFER;
+    else
+      memcpy(buffer, request.url, url_length + 1);
+  }
 
   rc_api_destroy_request(&request);
   return result;
diff --git a/pcsx2/Achievements.cpp b/pcsx2/Achievements.cpp
index 299542bdae9dc..0835c2d5071e1 100644
--- a/pcsx2/Achievements.cpp
+++ b/pcsx2/Achievements.cpp
@@ -66,6 +66,8 @@ namespace Achievements
 	static constexpr float INDICATOR_FADE_IN_TIME = 0.1f;
 	static constexpr float INDICATOR_FADE_OUT_TIME = 0.5f;
 
+	static constexpr size_t URL_BUFFER_SIZE = 256;
+
 	// Some API calls are really slow. Set a longer timeout.
 	static constexpr float SERVER_CALL_TIMEOUT = 60.0f;
 
@@ -799,7 +801,7 @@ void Achievements::UpdateRichPresence(std::unique_lock<std::recursive_mutex>& lo
 	if (!s_has_rich_presence || !s_rich_presence_poll_time.ResetIfSecondsPassed(1.0))
 		return;
 
-	char buffer[512];
+	char buffer[URL_BUFFER_SIZE];
 	const size_t res = rc_client_get_rich_presence_message(s_client, buffer, std::size(buffer));
 	const std::string_view sv(buffer, res);
 	if (s_rich_presence_string == sv)
@@ -949,21 +951,21 @@ void Achievements::ClientLoadGameCallback(int result, const char* error_message,
 	// ensure fullscreen UI is ready for notifications
 	MTGS::RunOnGSThread(&ImGuiManager::InitializeFullscreenUI);
 
+	char url_buffer[URL_BUFFER_SIZE];
+	if (int err = rc_client_game_get_image_url(info, url_buffer, std::size(url_buffer)); err == RC_OK)
+	{
+		s_game_icon_url = url_buffer;
+	}
+	else
+	{
+		ReportRCError(err, "rc_client_game_get_image_url() failed: ");
+	}
+
 	if (const std::string_view badge_name = info->badge_name; !badge_name.empty())
 	{
 		s_game_icon = Path::Combine(s_image_directory, fmt::format("game_{}.png", info->id));
-		if (!FileSystem::FileExists(s_game_icon.c_str()))
-		{
-			char buf[512];
-			if (int err = rc_client_game_get_image_url(info, buf, std::size(buf)); err == RC_OK)
-			{
-				DownloadImage(buf, s_game_icon);
-			}
-			else
-			{
-				ReportRCError(err, "rc_client_game_get_image_url() failed: ");
-			}
-		}
+		if (!s_game_icon.empty() && !s_game_icon_url.empty() && !FileSystem::FileExists(s_game_icon.c_str()))
+			DownloadImage(s_game_icon_url, s_game_icon);
 	}
 
 	UpdateGameSummary();
@@ -1580,7 +1582,7 @@ std::string Achievements::GetAchievementBadgePath(const rc_client_achievement_t*
 
 	if (!FileSystem::FileExists(path.c_str()))
 	{
-		char buf[512];
+		char buf[URL_BUFFER_SIZE];
 		const int res = rc_client_achievement_get_image_url(achievement, state, buf, std::size(buf));
 		if (res == RC_OK)
 			DownloadImage(buf, path);
@@ -1608,7 +1610,7 @@ std::string Achievements::GetLeaderboardUserBadgePath(const rc_client_leaderboar
 
 	if (!FileSystem::FileExists(path.c_str()))
 	{
-		char buf[512];
+		char buf[URL_BUFFER_SIZE];
 		const int res = rc_client_leaderboard_entry_get_user_image_url(entry, buf, std::size(buf));
 		if (res == RC_OK)
 			DownloadImage(buf, path);
@@ -1782,7 +1784,7 @@ std::string Achievements::GetLoggedInUserBadgePath()
 	badge_path = GetUserBadgePath(user->username);
 	if (!FileSystem::FileExists(badge_path.c_str())) [[unlikely]]
 	{
-		char url[512];
+		char url[URL_BUFFER_SIZE];
 		const int res = rc_client_user_get_image_url(user, url, std::size(url));
 		if (res == RC_OK)
 			DownloadImage(url, badge_path);
diff --git a/pcsx2/VMManager.cpp b/pcsx2/VMManager.cpp
index ec183fb3b2ad9..3788df611716c 100644
--- a/pcsx2/VMManager.cpp
+++ b/pcsx2/VMManager.cpp
@@ -3632,10 +3632,18 @@ void VMManager::UpdateDiscordPresence(bool update_session_time)
 	rp.details = s_title.empty() ?  TRANSLATE("VMManager","No Game Running") : s_title.c_str();
 
 	std::string state_string;
+
+	auto lock = Achievements::GetLock();
+
 	if (Achievements::HasRichPresence())
 	{
-		state_string = StringUtil::Ellipsise(Achievements::GetRichPresenceString(), 128);
-		rp.state = state_string.c_str();
+		rp.state = (state_string = StringUtil::Ellipsise(Achievements::GetRichPresenceString(), 128)).c_str();
+
+		if (const std::string& icon_url = Achievements::GetGameIconURL(); !icon_url.empty())
+		{
+			rp.largeImageKey = icon_url.c_str();
+			rp.largeImageText = s_title.c_str();
+		}
 	}
 
 	Discord_UpdatePresence(&rp);