diff --git a/core/modules/system/system.install b/core/modules/system/system.install
index 88d30e5387..f07133bcd4 100644
--- a/core/modules/system/system.install
+++ b/core/modules/system/system.install
@@ -953,7 +953,7 @@ function system_requirements($phase) {
         // Check for an incompatible version.
         $required_file = $files[$required_module];
         $required_name = $required_file->info['name'];
-        $version = str_replace(\Drupal::CORE_COMPATIBILITY . '-', '', $required_file->info['version']);
+        $version = str_replace(\Drupal::CORE_COMPATIBILITY . '-', '', $required_file->info['version'] ?? '');
         if (!$requirement->isCompatible($version)) {
           $requirements["$extension_name-$required_module"] = [
             'title' => t('Unresolved dependency'),
diff --git a/core/modules/system/tests/src/Functional/Module/DependencyTest.php b/core/modules/system/tests/src/Functional/Module/DependencyTest.php
index 63a4bf99ea..54e4e0d82d 100644
--- a/core/modules/system/tests/src/Functional/Module/DependencyTest.php
+++ b/core/modules/system/tests/src/Functional/Module/DependencyTest.php
@@ -125,6 +125,18 @@ public function testNoVersionInfo() {
     $this->drupalGet('admin/modules');
     $this->assertSession()->pageTextContains('System no module version dependency test');
     $this->assertSession()->pageTextContains('System no module version test');
+
+    // Ensure the modules can actually be installed.
+    $edit['modules[system_no_module_version_test][enable]'] = 'system_no_module_version_test';
+    $edit['modules[system_no_module_version_dependency_test][enable]'] = 'system_no_module_version_dependency_test';
+    $this->drupalGet('admin/modules');
+    $this->submitForm($edit, 'Install');
+    $this->assertSession()->pageTextContains('2 modules have been enabled: System no module version dependency test, System no module version test.');
+
+    // Ensure status report is working.
+    $this->drupalLogin($this->createUser(['administer site configuration']));
+    $this->drupalGet('admin/reports/status');
+    $this->assertSession()->statusCodeEquals(200);
   }
 
   /**