What’s Vulnerable › Vulnerabilities

CVE-2025-3200: Com-Server Exposed via Weak TLS

• Severity: critical (CVSS 9.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-04-28 · updated 2026-06-17
• Weakness: CWE-327

Description

An unauthenticated remote attacker could exploit the used, insecure TLS 1.0 and TLS 1.1 protocols to intercept and manipulate encrypted communications between the Com-Server and connected systems.

Affected products

• Wiesemann & Theis Com-Server++: before 1.60 — fixed in 1.60
• Wiesemann & Theis Com-Server 20mA: before 1.60 — fixed in 1.60
• Wiesemann & Theis Com-Server OEM: before 1.60 — fixed in 1.60
• Wiesemann & Theis Com-Server PoE 3x Isolated: before 1.60 — fixed in 1.60
• Wiesemann & Theis Com-Server UL: before 1.60 — fixed in 1.60

How to fix

Upgrade to a fixed version: Wiesemann & Theis Com-Server++ 1.60; Wiesemann & Theis Com-Server 20mA 1.60; Wiesemann & Theis Com-Server OEM 1.60; Wiesemann & Theis Com-Server PoE 3x Isolated 1.60; Wiesemann & Theis Com-Server UL 1.60. Check the vendor advisory for mitigations.

References

• https://certvde.com/en/advisories/VDE-2025-031/

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