CVE-2014-2254

Name of the Vulnerable Software and Affected Versions Siemens SIMATIC S7-1200 CPU PLC devices with firmware prior to 4.0

Description The issue allows a remote attacker to cause a denial of service, resulting in the device entering defect mode, by sending crafted HTTP packets to the TCP port 80. This can lead to the device requiring a "cold" restart.

Recommendations For Siemens SIMATIC S7-1200 CPU PLC devices with firmware prior to 4.0, update the firmware to version 4.0 or later to resolve the issue. As a temporary workaround, consider restricting access to the TCP port 80 to minimize the risk of exploitation.