diff --git a/dubbo-common/src/main/java/org/apache/dubbo/common/utils/NetUtils.java b/dubbo-common/src/main/java/org/apache/dubbo/common/utils/NetUtils.java
index c9ddff2a561..29095e88482 100644
--- a/dubbo-common/src/main/java/org/apache/dubbo/common/utils/NetUtils.java
+++ b/dubbo-common/src/main/java/org/apache/dubbo/common/utils/NetUtils.java
@@ -738,7 +738,7 @@ public static boolean matchIpExpression(String pattern, String address) throws U
         String host = address;
         int port = 0;
         // only works for ipv4 address with 'ip:port' format
-        if (address.endsWith(":")) {
+        if (address.contains(":")) {
             String[] hostPort = address.split(":");
             host = hostPort[0];
             port = StringUtils.parseInteger(hostPort[1]);
diff --git a/dubbo-common/src/test/java/org/apache/dubbo/common/utils/NetUtilsTest.java b/dubbo-common/src/test/java/org/apache/dubbo/common/utils/NetUtilsTest.java
index 9f093229ab0..49a2305f7f6 100644
--- a/dubbo-common/src/test/java/org/apache/dubbo/common/utils/NetUtilsTest.java
+++ b/dubbo-common/src/test/java/org/apache/dubbo/common/utils/NetUtilsTest.java
@@ -346,6 +346,22 @@ void testMatchIpMatch() throws UnknownHostException {
         assertTrue(NetUtils.matchIpExpression("192.168.1.192/26", "192.168.1.199", 90));
     }
 
+    @Test
+    void testMatchIpExpressionDeprecatedTwoArgsWithIpPort() throws UnknownHostException {
+        // The deprecated 2-arg matchIpExpression should correctly parse host and port from
+        // an "ip:port" address string. Normal addresses like "192.168.1.63:90" should
+        // split into host="192.168.1.63" and port=90.
+        // With contains(":") this works; with endsWith(":") it does not.
+
+        // Pattern with port: host must match AND port must match
+        assertTrue(NetUtils.matchIpExpression("192.168.1.63:90", "192.168.1.63:90"));
+        assertFalse(NetUtils.matchIpExpression("192.168.1.63:90", "192.168.1.63:80"));
+
+        // Pattern without port: only host must match
+        assertTrue(NetUtils.matchIpExpression("192.168.1.*", "192.168.1.63:90"));
+        assertTrue(NetUtils.matchIpExpression("192.168.1.192/26", "192.168.1.199:8080"));
+    }
+
     @Test
     void testMatchIpv6WithIpPort() throws UnknownHostException {
         assertTrue(NetUtils.matchIpRange("[234e:0:4567::3d:ee]", "234e:0:4567::3d:ee", 8090));