diff --git a/src/ZB.MOM.WW.ScadaBridge.ManagementService/ManagementActor.cs b/src/ZB.MOM.WW.ScadaBridge.ManagementService/ManagementActor.cs
index 2df98948..3b145dc1 100644
--- a/src/ZB.MOM.WW.ScadaBridge.ManagementService/ManagementActor.cs
+++ b/src/ZB.MOM.WW.ScadaBridge.ManagementService/ManagementActor.cs
@@ -2745,7 +2745,13 @@ public class ManagementActor : ReceiveActor
     private static DeploymentStatus? ParseDeploymentStatus(string? status)
     {
         if (string.IsNullOrWhiteSpace(status)) return null;
-        if (Enum.TryParse<DeploymentStatus>(status, ignoreCase: true, out var parsed)
+        var trimmed = status.Trim();
+        // Reject ordinals before TryParse — "2" parses to InProgress, which the
+        // documented names-only contract does not admit. No enum member name can
+        // start with a digit or a sign (same guard as AuditQueryParamParsers).
+        var looksNumeric = char.IsAsciiDigit(trimmed[0]) || trimmed[0] == '+' || trimmed[0] == '-';
+        if (!looksNumeric
+            && Enum.TryParse<DeploymentStatus>(trimmed, ignoreCase: true, out var parsed)
             && Enum.IsDefined(parsed))
         {
             return parsed;
diff --git a/tests/ZB.MOM.WW.ScadaBridge.ManagementService.Tests/ManagementActorTests.cs b/tests/ZB.MOM.WW.ScadaBridge.ManagementService.Tests/ManagementActorTests.cs
index 99b2c4ea..61dc64dd 100644
--- a/tests/ZB.MOM.WW.ScadaBridge.ManagementService.Tests/ManagementActorTests.cs
+++ b/tests/ZB.MOM.WW.ScadaBridge.ManagementService.Tests/ManagementActorTests.cs
@@ -1678,6 +1678,27 @@ public class ManagementActorTests : TestKit, IDisposable
         deployRepo.DidNotReceiveWithAnyArgs().QueryDeploymentListPageAsync(default!, default, default);
     }
 
+    [Theory]
+    [InlineData("2")]
+    [InlineData("+1")]
+    [InlineData("-1")]
+    public void QueryDeployments_OrdinalStatus_IsRejectedLikeAnyUnknownValue(string status)
+    {
+        // Register row 88 postscript (Wave 6): Enum.TryParse accepts ordinals, so
+        // `--status 2` silently resolved to InProgress despite the documented
+        // names-only contract. Same guard as AuditQueryParamParsers.LooksNumeric.
+        var deployRepo = Substitute.For<IDeploymentManagerRepository>();
+        StubDeploymentPageQuery(deployRepo, (1, 1));
+        _services.AddScoped(_ => deployRepo);
+
+        var actor = CreateActor();
+        actor.Tell(Envelope(new QueryDeploymentsCommand(Status: status), "Deployer"));
+
+        var response = ExpectMsg<ManagementError>(TimeSpan.FromSeconds(5));
+        Assert.Contains("Success", response.Error);
+        deployRepo.DidNotReceiveWithAnyArgs().QueryDeploymentListPageAsync(default!, default, default);
+    }
+
     [Theory]
     [InlineData("success")]
     [InlineData("SUCCESS")]