diff --git a/src/network/networkd-network.c b/src/network/networkd-network.c
index ae466a2310..d83da26f5a 100644
--- a/src/network/networkd-network.c
+++ b/src/network/networkd-network.c
@@ -739,6 +739,9 @@ static Network *network_free(Network *network) {
         free(network->dhcp_server_dns);
         free(network->dhcp_server_ntp);
         free(network->dhcp_server_sip);
+        free(network->dhcp_server_pop3);
+        free(network->dhcp_server_smtp);
+        free(network->dhcp_server_lpr);
 
         set_free_free(network->dnssec_negative_trust_anchors);
 
diff --git a/test/fuzz/fuzz-network-parser/github-15951 b/test/fuzz/fuzz-network-parser/github-15951
new file mode 100644
index 0000000000..7785f35a44
--- /dev/null
+++ b/test/fuzz/fuzz-network-parser/github-15951
@@ -0,0 +1,2 @@
+[DHCPServer]
+POP3Servers=1.8.5.0