What’s Vulnerable › Vulnerabilities
CVE-2026-85115
- Severity: medium (CVSS 5.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.1% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-10-13 · updated 2026-10-15
- Weakness: CWE-209
Description
A vulnerability has been identified in .NET Client Library for SIMATIC S7 Webserver API (All versions < V3.3.62). Affected applications do not properly redact PLC restore passwords from HTTP error exception messages. This could allow an attacker with access to logs or other diagnostic output to obtain the plaintext restore password and potentially perform unauthorized operations on the PLC.
Affected products
- Siemens .NET Client Library for SIMATIC S7 Webserver API: before V3.3.62 — fixed in V3.3.62
How to fix
Upgrade to a fixed version: Siemens .NET Client Library for SIMATIC S7 Webserver API V3.3.62. Check the vendor advisory for mitigations.
References
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