Vulnerability · Published Oct 13, 2026 · Assigned by siemens
CVE-2026-59241
High 8.8
In plain English
A high-severity security flaw in SIMATIC WinCC V7.5 from Siemens. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 28% of all known vulnerabilities).
Official description
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 application does not sufficiently restrict the permissions assigned to a database role. This could allow an authenticated remote attacker with database access to escalate privileges and execute arbitrary commands on the host system where SIMATIC WinCC is installed, potentially leading to a compromise of the system.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Siemens | SIMATIC WinCC V7.5 | 0 – before * |
| Siemens | SIMATIC WinCC V8.0 | 0 – before V8.0 Update 11 |
| Siemens | SIMATIC WinCC V8.1 | 0 – before V8.1 Update 7 |
Weakness: CWE-266 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H