CVE-2011-4877: Input Validation
HmiLoad in the runtime loader in Siemens WinCC flexible 2004, 2005, 2007, and 2008; WinCC V11 (aka TIA portal); the TP, OP, MP, Comfort Panels, and Mobile Panels SIMATIC HMI panels; WinCC V11 Runtime Advanced; and WinCC flexible Runtime, when Transfer Mode is enabled, allows remote attackers to cause a denial of service (application crash) by sending crafted data over TCP.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2011-4877?
CVE-2011-4877 is rated as a medium severity vulnerability.
How do I fix CVE-2011-4877?
To fix CVE-2011-4877, update your Siemens WinCC software to the latest version or disable Transfer Mode in the runtime loader settings.
Which Siemens products are affected by CVE-2011-4877?
CVE-2011-4877 affects Siemens WinCC flexible 2004-2008, WinCC V11, and various SIMATIC HMI panels.
What type of vulnerability is CVE-2011-4877?
CVE-2011-4877 is a remote code execution vulnerability that can be exploited when Transfer Mode is enabled.
Can CVE-2011-4877 be exploited remotely?
Yes, CVE-2011-4877 can be exploited remotely by attackers if the Transfer Mode feature is enabled.