SIMATIC WinCC Unified PC Runtime vulnerabilities

2 known vulnerabilities in SIMATIC WinCC Unified PC Runtime from Siemens. 2 are rated high or critical, and 1 has been exploited in real attacks. Each entry lists the affected versions and the release that fixes it, where the vendor has published one.

Latest first

• 9.8 Critical severity

  Google Brotli Unchecked Return Value Exploited

  CVE-2026-111497Oct 22, 2026GoogleEPSS 82.6%

  A buffer overflow vulnerability in the Brotli decoder (c/dec/decode.c) in Google Brotli versions 1.0.3 through 1.2.0 on all platforms allows a remote unauthenticated attacker to corrupt adjacent decoder state memory, disclose sensitive memory contents, cause a

• 7.1 High severity

  SIMATIC WinCC Unified PC Runtime V16: Cleartext Storage in a File or on Disk

  CVE-2026-24349Jun 9, 2026Siemens

  A vulnerability has been identified in SIMATIC WinCC Unified PC Runtime V16 (All versions), SIMATIC WinCC Unified PC Runtime V17 (All versions), SIMATIC WinCC Unified PC Runtime V18 (All versions), SIMATIC WinCC Unified PC Runtime V19 (All versions), SIMATIC W