What is CVE-2025-40818?

CVE-2025-40818 is a low-severity vulnerability in Siemens Sinema Remote Connect Server, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 3.3/10. Published 2025-12-09.

How severe is CVE-2025-40818?

Low severity. CVSS v3 base score is 3.3 out of 10.

Vulnerability in Siemens Sinema Remote Connect Server

CVE-2025-40818

A vulnerability has been identified in SINEMA Remote Connect Server (All versions < V3.2 SP4). Affected applications contain private SSL/TLS keys on the server that are not properly protected allowing any user with server access to read these keys. This could allow an authenticated attacker to impersonate the server potentially enabling man-in-the-middle, traffic decryption or unauthorized access to services that trust these certificates.

EPSS: 0.001 (0.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

Affected products

Siemens Sinema Remote Connect Server — versions 0
Siemens Sinema_remote_connect_server — versions 3.2

Weakness classification (CWE)

CWE-732 — Incorrect Permission Assignment for Critical Resource

References

productcert@siemens.com (Vendor Advisory)

Frequently asked questions

What is CVE-2025-40818?: CVE-2025-40818 is a low-severity vulnerability in Siemens Sinema Remote Connect Server, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 3.3/10. Published 2025-12-09.
How severe is CVE-2025-40818?: Low severity. CVSS v3 base score is 3.3 out of 10.