TI-2025-27263 Aliases CVE-2025-40818 GHSA-x5gj-xmj6-c2mc

Incorrect permission assignment in Siemens SINEMA Remote Connect Server

LOW 15CWE-732Published 2025-12-09 · Updated 2025-12-09

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: Low · None · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00102 0th percentileScored 2026-11-07

Fix Fixed SINEMA Remote Connect Server (Siemens): V3.2 SP4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Siemens	SINEMA Remote Connect Server	before V3.2 SP4	V3.2 SP4	Patch available	CNA

SINEMA Remote Connect Server VendorSiemens Affected before V3.2 SP4 Fixed in V3.2 SP4 Patch available CNA

CPE configurations NVD · 4

CPE	Versions	Role	Vendor
cpe:2.3:a:siemens:sinema_remote_connect_server::::::::	before 3.2	Vulnerable	Siemens
cpe:2.3:a:siemens:sinema_remote_connect_server:3.2:sp1::::::	3.2 sp1	Vulnerable	Siemens
cpe:2.3:a:siemens:sinema_remote_connect_server:3.2:sp2::::::	3.2 sp2	Vulnerable	Siemens
cpe:2.3:a:siemens:sinema_remote_connect_server:3.2:sp3::::::	3.2 sp3	Vulnerable	Siemens

cpe:2.3:a:siemens:sinema_remote_connect_server:*:*:*:*:*:*:*:* Versions before 3.2 Vulnerable ·Siemens
cpe:2.3:a:siemens:sinema_remote_connect_server:3.2:sp1:*:*:*:*:*:* Versions 3.2 sp1 Vulnerable ·Siemens
cpe:2.3:a:siemens:sinema_remote_connect_server:3.2:sp2:*:*:*:*:*:* Versions 3.2 sp2 Vulnerable ·Siemens
cpe:2.3:a:siemens:sinema_remote_connect_server:3.2:sp3:*:*:*:*:*:* Versions 3.2 sp3 Vulnerable ·Siemens

Remediation

Fix · CNA SINEMA Remote Connect Server (Siemens) Fixed in V3.2 SP4

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2025-12-09
Siemens SINEMA Remote Connect Server V3.2 SP4
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2025-27264 Incorrect authorization in Siemens SINEMA Remote Connect ServerPriority LOW 20
Show all 2 records →

Timeline

2026-10-02 Threatist record created from CVE-2025-40818
2026-10-03 Alias added: GHSA-x5gj-xmj6-c2mc

References

Advisory 1

https://cert-portal.siemens.com/productcert/html/ssa-626856.html

TI-2021-17490 mod_proxy SSRF KEVCVSS 3.1CRITICAL 9.0
TI-2022-09008 In Expat (aka libexpat) before 2.4.5, there is an integer overflow in storeRawNames. CVSS 3.1CRITICAL 9.8
TI-2022-08947 xmlparse.c in Expat (aka libexpat) before 2.4.5 allows attackers to insert… CVSS 3.1CRITICAL 9.8
TI-2020-06117 xmlStringLenDecodeEntities in parser.c in libxml2 2.9.10 has an infinite loop in a certain end-of-file situation. CVSS 3.1HIGH 7.5
TI-2021-20962 In Expat (aka libexpat) before 2.4.3, a left shift by 29 (or more) places in the… CVSS 3.1HIGH 8.8
TI-2021-21076 In doProlog in xmlparse.c in Expat (aka libexpat) before 2.4.3, an integer overflow exists for m_groupSize. CVSS 3.1HIGH 8.1

See all 70 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences