Auth bypass in Siemens Sinema Remote Connect Server

CVE-2025-40819

A vulnerability has been identified in SINEMA Remote Connect Server (All versions < V3.2 SP4). Affected applications do not properly validate license restrictions against the database, allowing direct modification of the system_ticketinfo table to bypass license limitations without proper enforcement checks. This could allow with database access to circumvent licensing restrictions by directly modifying database values and potentially enabling unauthorized use beyond the permitted scope.

Vulnerability class: Broken Access Control

Published · last modified .

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.002 (14.5th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 15th percentile — 14.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-40819: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-40819?
CVE-2025-40819 is a medium-severity vulnerability in Siemens Sinema Remote Connect Server, classified under Incorrect Authorization. CVSS score: 4.3/10. Published 2025-12-09.
How severe is CVE-2025-40819?
Medium severity. CVSS v3 base score is 4.3 out of 10.