1 files changed, 5 insertions, 2 deletions
diff --git a/internal/cvss/v2metric.go b/internal/cvss/v2metric.go
index a80cf8a..2dee41a 100644
--- a/internal/cvss/v2metric.go
+++ b/internal/cvss/v2metric.go
@@ -236,6 +236,9 @@ func getV2Metric(s string) (v2Metric, error) {
 
 // Get CVSS 2.0 metric key.
 func (m v2Metric) Key() Key {
-  k, _ := v2KeyLut[m]
-  return k
+  if k, ok := v2KeyLut[m]; ok {
+    return k
+  } else {
+    return v2InvalidKey
+  }
 }