CVE-2020-25239

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-03-15 · updated 2026-06-17
Weakness: CWE-863

Description

A vulnerability has been identified in SINEMA Remote Connect Server (All versions < V3.0). The webserver could allow unauthorized actions via special urls for unpriviledged users. The settings of the UMC authorization server could be changed to add a rogue server by an attacker authenticating with unprivilege user rights.

Affected products

Siemens SINEMA Remote Connect Server: before 3.0 — fixed in 3.0

How to fix

Upgrade to a fixed version: Siemens SINEMA Remote Connect Server 3.0. Check the vendor advisory for mitigations.

References

https://cert-portal.siemens.com/productcert/pdf/ssa-731317.pdf
https://cert-portal.siemens.com/productcert/pdf/ssa-731317.pdf

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