diff --git a/poi-ooxml/src/main/java/org/apache/poi/xwpf/usermodel/XWPFAbstractFootnotesEndnotes.java b/poi-ooxml/src/main/java/org/apache/poi/xwpf/usermodel/XWPFAbstractFootnotesEndnotes.java
index d626350298..c6bca6d5ad 100644
--- a/poi-ooxml/src/main/java/org/apache/poi/xwpf/usermodel/XWPFAbstractFootnotesEndnotes.java
+++ b/poi-ooxml/src/main/java/org/apache/poi/xwpf/usermodel/XWPFAbstractFootnotesEndnotes.java
@@ -57,8 +57,10 @@ public abstract class XWPFAbstractFootnotesEndnotes extends POIXMLDocumentPart {
 
     public XWPFAbstractFootnoteEndnote getFootnoteById(int id) {
         for (XWPFAbstractFootnoteEndnote note : listFootnote) {
-            if (note.getCTFtnEdn().getId().intValue() == id)
+            if (note.getCTFtnEdn().getId() != null &&
+                    note.getCTFtnEdn().getId().intValue() == id) {
                 return note;
+            }
         }
         return null;
     }
diff --git a/test-data/document/clusterfuzz-testcase-minimized-POIXWPFFuzzer-5569740188549120.docx b/test-data/document/clusterfuzz-testcase-minimized-POIXWPFFuzzer-5569740188549120.docx
new file mode 100644
index 0000000000..6947f6fbec
Binary files /dev/null and b/test-data/document/clusterfuzz-testcase-minimized-POIXWPFFuzzer-5569740188549120.docx differ