diff --git a/support/scripts/cve.py b/support/scripts/cve.py
index dcb3a63925..6cd9aab963 100755
--- a/support/scripts/cve.py
+++ b/support/scripts/cve.py
@@ -21,6 +21,7 @@ import datetime
 import os
 import distutils.version
 import json
+import shutil
 import subprocess
 import sys
 import operator
@@ -69,15 +70,21 @@ class CVE:
 
     @staticmethod
     def download_nvd(nvd_git_dir):
+        done = False
         print(f"Updating from {NVD_BASE_URL}")
         if os.path.exists(nvd_git_dir):
-            subprocess.check_call(
-                ["git", "pull", "--depth", "1"],
-                cwd=nvd_git_dir,
-                stdout=subprocess.DEVNULL,
-                stderr=subprocess.DEVNULL,
-            )
-        else:
+            try:
+                subprocess.check_call(
+                    ["git", "pull", "--depth", "1"],
+                    cwd=nvd_git_dir,
+                    stdout=subprocess.DEVNULL,
+                    stderr=subprocess.DEVNULL,
+                )
+                done = True
+            except:
+                shutil.rmtree(nvd_git_dir)
+
+        if (not done):
             # Create the directory and its parents; git
             # happily clones into an empty directory.
             os.makedirs(nvd_git_dir)