Siemens SIMATIC Wincc v8.1 vulnerabilities

2 CVEs affecting Siemens SIMATIC Wincc v8.1, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2026-59241, published 2026-10-13.

Highest priority

Known exploited (CISA KEV) first, then by EPSS exploit probability.

CVE-2026-59241, published 2026-10-13. High severity, CVSS 8.8. EPSS: 0.5% chance of exploitation in the next 30 days. A vulnerability has been identified in SIMATIC WinCC V7.5 (All versions), SIMATIC WinCC V8.0 (All versions < V8.0 Update 11), SIMATIC WinCC V8.1 (All versions < V8.1 Update 7). The affected…
CVE-2025-30033, published 2025-08-12. High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days. The affected setup component is vulnerable to DLL hijacking. This could allow an attacker to execute arbitrary code when a legitimate user installs an application that uses the affected setup…