diff --git a/framework/CHANGELOG.md b/framework/CHANGELOG.md
index b26f1cac0a..051a2af275 100644
--- a/framework/CHANGELOG.md
+++ b/framework/CHANGELOG.md
@@ -21,6 +21,7 @@ Yii Framework 2 Change Log
 - Bug #13592: Fixes Oracle’s `yii\db\oci\Schema::setTransactionIsolationLevel()` (sergeymakinen)
 - Bug #13594: Fixes insufficient quoting in `yii\db\QueryBuilder::prepareInsertSelectSubQuery()` (sergeymakinen)
 - Enh #13576: Added support of `srcset` to `yii\helpers\Html::img()` (Kolyunya)
+- Enh #8641: Enhanced `yii\console\Request::resolve()` to prevent passing parameters, that begin from digits (silverfire)
 - Enh #13467: `yii\data\ActiveDataProvider` no longer queries models if models count is zero (kLkA, Kolyunya)
 - Enh #13582: Added tests for all `yii\db\QueryBuilder::resetSequence` implementations, fixed SQLite implementation (boboldehampsink)
 
diff --git a/framework/console/Request.php b/framework/console/Request.php
index 7b667be64d..637e3b348a 100644
--- a/framework/console/Request.php
+++ b/framework/console/Request.php
@@ -7,6 +7,8 @@
 
 namespace yii\console;
 
+use yii\base\InvalidParamException;
+
 /**
  * The console Request represents the environment information for a console application.
  *
@@ -53,6 +55,7 @@ class Request extends \yii\base\Request
     /**
      * Resolves the current request into a route and the associated parameters.
      * @return array the first element is the route, and the second is the associated parameters.
+     * @throws InvalidParamException when parameter is wrong and can not be resolved
      */
     public function resolve()
     {
@@ -77,6 +80,10 @@ class Request extends \yii\base\Request
                 $endOfOptionsFound = true;
             } elseif (preg_match('/^--(\w+)(?:=(.*))?$/', $param, $matches)) {
                 $name = $matches[1];
+                if (is_numeric(substr($name, 0, 1))) {
+                    throw new InvalidParamException('Parameter "' . $name . '" is not valid');
+                }
+
                 if ($name !== Application::OPTION_APPCONFIG) {
                     $params[$name] = isset($matches[2]) ? $matches[2] : true;
                 }
diff --git a/tests/framework/console/RequestTest.php b/tests/framework/console/RequestTest.php
index 130de9bf9d..d23186d811 100644
--- a/tests/framework/console/RequestTest.php
+++ b/tests/framework/console/RequestTest.php
@@ -18,8 +18,8 @@ class RequestTest extends TestCase
                 'expected' => [
                     'route' => 'controller',
                     'params' => [
-                    ]
-                ]
+                    ],
+                ],
             ],
             [
                 'params' => [
@@ -29,7 +29,7 @@ class RequestTest extends TestCase
                     '--option1',
                     '--option2=testValue',
                     '-alias1',
-                    '-alias2=testValue'
+                    '-alias2=testValue',
                 ],
                 'expected' => [
                     'route' => 'controller/route',
@@ -40,10 +40,10 @@ class RequestTest extends TestCase
                         'option2' => 'testValue',
                         '_aliases' => [
                             'alias1' => true,
-                            'alias2' => 'testValue'
-                        ]
-                    ]
-                ]
+                            'alias2' => 'testValue',
+                        ],
+                    ],
+                ],
             ],
             [
                 // Case: Special argument "End of Options" used
@@ -62,7 +62,7 @@ class RequestTest extends TestCase
                     '--', // Second `--` argument shouldn't be treated as special
                     '--option4=testValue',
                     '-alias3',
-                    '-alias4=testValue'
+                    '-alias4=testValue',
                 ],
                 'expected' => [
                     'route' => 'controller/route',
@@ -73,7 +73,7 @@ class RequestTest extends TestCase
                         'option2' => 'testValue',
                         '_aliases' => [
                             'alias1' => true,
-                            'alias2' => 'testValue'
+                            'alias2' => 'testValue',
                         ],
                         'param2',
                         '-54321',
@@ -81,9 +81,9 @@ class RequestTest extends TestCase
                         '--',
                         '--option4=testValue',
                         '-alias3',
-                        '-alias4=testValue'
-                    ]
-                ]
+                        '-alias4=testValue',
+                    ],
+                ],
             ],
             [
                 // Case: Special argument "End of Options" placed before route
@@ -95,7 +95,7 @@ class RequestTest extends TestCase
                     '--option1',
                     '--option2=testValue',
                     '-alias1',
-                    '-alias2=testValue'
+                    '-alias2=testValue',
                 ],
                 'expected' => [
                     'route' => 'controller/route',
@@ -105,18 +105,40 @@ class RequestTest extends TestCase
                         '--option1',
                         '--option2=testValue',
                         '-alias1',
-                        '-alias2=testValue'
-                    ]
-                ]
-            ]
+                        '-alias2=testValue',
+                    ],
+                ],
+            ],
+            [
+                // PHP does not allow variable name, starting with digit.
+                // InvalidParamException must be thrown during request resolving:
+                'params' => [
+                    'controller/route',
+                    '--0=test',
+                    '--1=testing',
+                ],
+                'expected' => [
+                    'route' => 'controller/route',
+                    'params' => [
+                    ],
+                ],
+                'exception' => [
+                    '\yii\base\InvalidParamException',
+                    'Parameter "0" is not valid'
+                ],
+            ],
         ];
     }
 
     /**
      * @dataProvider provider
      */
-    public function testResolve($params, $expected)
+    public function testResolve($params, $expected, $expectedException = null)
     {
+        if (isset($expectedException)) {
+            $this->setExpectedException($expectedException[0], $expectedException[1]);
+        }
+
         $request = new Request();
 
         $request->setParams($params);