CVE-2026-59082: Siemens SIMATIC WinCC V7.5 · Insufficient UI Warning of Dangerous Operations
Affects Siemens SIMATIC WinCC V7.5Source CVE Database V5
Not known to be exploited · CVSS 7.8 High.
Data as of 10 Nov 2026, 11:49 UTC
Thin evidence
One scorer or none| CNA (siemens) | CVSS 3.1 | 7.8 |
|---|---|---|
| CNA (siemens) | CVSS 4.0 | 8.5 |
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 10 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 10 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| SiemensSIMATIC WinCC V7.5 | Affected
| Fixed in– |
| SiemensSIMATIC WinCC V8.0 | Affected
| Fixed in– |
| SiemensSIMATIC WinCC V8.1 | Affected
| Fixed in– |
AI-suggested
Until a fix is available, users should exercise caution when opening files from untrusted sources and follow Siemens' security recommendations.
Description
CVE-2026-59082 is a high-severity vulnerability in Siemens SIMATIC WinCC versions 7.5, 8.0, and 8.1. The affected software implicitly executes active content when opening files, which can lead to arbitrary code execution by an attacker if the user is tricked into opening a malicious file. This is due to insufficient user interface warnings about dangerous operations.