VULNERABILITY INTELLIGENCE

CVE-2011-4508

CVSS score9.3 HIGH
EPSS probability2.98%
CISA KEVNot currently listed
Published2012-02-03
Last modified2026-06-16
CVSS vectorAV:N/AC:M/Au:N/C:C/I:C/A:C

Description

The HMI web server in Siemens WinCC flexible 2004, 2005, 2007, and 2008 before SP3; WinCC V11 (aka TIA portal) before SP2 Update 1; the TP, OP, MP, Comfort Panels, and Mobile Panels SIMATIC HMI panels; WinCC V11 Runtime Advanced; and WinCC flexible Runtime generates predictable authentication tokens for cookies, which makes it easier for remote attackers to bypass authentication via a crafted cookie.

Weakness classification

  • CWE-287: Improper Authentication

Primary references