CVE-2025-40818
SINEMA Remote Connect Server SSL/TLS Key Disclosure
Description
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.
INFO
Published Date :
Dec. 9, 2025, 4:17 p.m.
Last Modified :
Dec. 10, 2025, 9:42 p.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | LOW | MITRE-CVE | ||||
| CVSS 3.1 | LOW | [email protected] |
Solution
- Update SINEMA Remote Connect Server to V3.2 SP4.
- Secure or rotate any exposed private SSL/TLS keys.
- Monitor for unauthorized access or impersonation attempts.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-40818.
| URL | Resource |
|---|---|
| https://cert-portal.siemens.com/productcert/html/ssa-626856.html | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-40818 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-40818
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-40818 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-40818 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Dec. 10, 2025
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:siemens:sinema_remote_connect_server:*:*:*:*:*:*:*:* versions up to (excluding) 3.2 *cpe:2.3:a:siemens:sinema_remote_connect_server:3.2:sp1:*:*:*:*:*:* *cpe:2.3:a:siemens:sinema_remote_connect_server:3.2:sp2:*:*:*:*:*:* *cpe:2.3:a:siemens:sinema_remote_connect_server:3.2:sp3:*:*:*:*:*:* Added Reference Type Siemens AG: https://cert-portal.siemens.com/productcert/html/ssa-626856.html Types: Vendor Advisory -
New CVE Received by [email protected]
Dec. 09, 2025
Action Type Old Value New Value Added Description 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. Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Added CWE CWE-732 Added Reference https://cert-portal.siemens.com/productcert/html/ssa-626856.html