diff --git a/docs/release-notes/version-2.7.md b/docs/release-notes/version-2.7.md
index d96b2b24b..6f8fa2279 100644
--- a/docs/release-notes/version-2.7.md
+++ b/docs/release-notes/version-2.7.md
@@ -16,6 +16,7 @@
 
 * [#4326](https://github.com/netbox-community/netbox/issues/4326) - Exclude Python modules without Script classes from scripts list
 * [#4337](https://github.com/netbox-community/netbox/issues/4337) - Allow bulk editing/deletion of all device components matching a query
+* [#4338](https://github.com/netbox-community/netbox/issues/4338) - Catch `AddrFormatError` exception when filtering aggregates/prefixes by an invalid prefix
 
 ---
 
diff --git a/netbox/ipam/filters.py b/netbox/ipam/filters.py
index c2dbd573b..ed77ee014 100644
--- a/netbox/ipam/filters.py
+++ b/netbox/ipam/filters.py
@@ -111,7 +111,7 @@ class AggregateFilterSet(BaseFilterSet, CustomFieldFilterSet, CreatedUpdatedFilt
         try:
             query = str(netaddr.IPNetwork(value).cidr)
             return queryset.filter(prefix=query)
-        except ValidationError:
+        except (AddrFormatError, ValueError):
             return queryset.none()
 
 
@@ -233,7 +233,7 @@ class PrefixFilterSet(BaseFilterSet, TenancyFilterSet, CustomFieldFilterSet, Cre
         try:
             query = str(netaddr.IPNetwork(value).cidr)
             return queryset.filter(prefix=query)
-        except ValidationError:
+        except (AddrFormatError, ValueError):
             return queryset.none()
 
     def search_within(self, queryset, name, value):