diff --git a/misp_modules/modules/expansion/cve_advanced.py b/misp_modules/modules/expansion/cve_advanced.py
index 9071ff9..a5e807e 100644
--- a/misp_modules/modules/expansion/cve_advanced.py
+++ b/misp_modules/modules/expansion/cve_advanced.py
@@ -87,7 +87,7 @@ class VulnerabilityParser():
             )
 
     def __parse_weakness(self, vulnerability_uuid):
-        cwe_string, cwe_id = self.vulnerability['cwe'].split('-')
+        cwe_string, cwe_id = self.vulnerability['cwe'].split('-')[:2]
         cwes = requests.get(self.api_url.replace('/cve/', '/cwe'))
         if cwes.status_code == 200:
             for cwe in cwes.json():