Improper certificate validation in Siemens COMOS V10.6
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-295.
Summary
A vulnerability has been identified in COMOS V10.6 (All versions < V10.6.1), COMOS V10.6 (All versions < V10.6.1), NX V2412 (All versions < V2412.8700), NX V2506 (All versions < V2506.6000), Simcenter 3D (All versions < V2506.6000), Simcenter Femap (All versions < V2506.0002), Solid Edge SE2025 (All versions < V225.0 Update 10), Solid Edge SE2026 (All versions < V226.0 Update 1). The IAM client in affected products is missing server certificate validation while establishing TLS connections to the authorization server. This could allow an attacker to perform a man-in-the-middle attack.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
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 | COMOS V10.6 | before V10.6.1 | V10.6.1 | Patch available | CNA |
| Siemens | COMOS V10.6 | before V10.6.1 | V10.6.1 | Patch available | CNA |
| Siemens | NX V2412 | before V2412.8700 | V2412.8700 | Patch available | CNA |
| Siemens | NX V2506 | before V2506.6000 | V2506.6000 | Patch available | CNA |
| Siemens | Simcenter 3D | before V2506.6000 | V2506.6000 | Patch available | CNA |
| Siemens | Simcenter Femap | before V2506.0002 | V2506.0002 | Patch available | CNA |
| Siemens | Solid Edge SE2025 | before V225.0 Update 10 | V225.0 Update 10 | Patch available | CNA |
| Siemens | Solid Edge SE2026 | before V226.0 Update 1 | V226.0 Update 1 | Patch available | CNA |
- COMOS V10.6 VendorSiemens Affected before V10.6.1 Fixed in V10.6.1 Patch available CNA
- COMOS V10.6 VendorSiemens Affected before V10.6.1 Fixed in V10.6.1 Patch available CNA
- NX V2412 VendorSiemens Affected before V2412.8700 Fixed in V2412.8700 Patch available CNA
- NX V2506 VendorSiemens Affected before V2506.6000 Fixed in V2506.6000 Patch available CNA
- Simcenter 3D VendorSiemens Affected before V2506.6000 Fixed in V2506.6000 Patch available CNA
- Simcenter Femap VendorSiemens Affected before V2506.0002 Fixed in V2506.0002 Patch available CNA
- Solid Edge SE2025 VendorSiemens Affected before V225.0 Update 10 Fixed in V225.0 Update 10 Patch available CNA
- Solid Edge SE2026 VendorSiemens Affected before V226.0 Update 1 Fixed in V226.0 Update 1 Patch available CNA
Remediation
- Fix · CNA COMOS V10.6 (Siemens) Fixed in V10.6.1
- Fix · CNA COMOS V10.6 (Siemens) Fixed in V10.6.1
- Fix · CNA NX V2412 (Siemens) Fixed in V2412.8700
- Fix · CNA NX V2506 (Siemens) Fixed in V2506.6000
- Fix · CNA Simcenter 3D (Siemens) Fixed in V2506.6000
- Fix · CNA Simcenter Femap (Siemens) Fixed in V2506.0002
- Fix · CNA Solid Edge SE2025 (Siemens) Fixed in V225.0 Update 10
- Fix · CNA Solid Edge SE2026 (Siemens) Fixed in V226.0 Update 1
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Siemens COMOS V10.6, NX V2506 and 2 more products V10.6.1, V2506.0002, V2506.6000
2 records Highest priority Priority MEDIUM 2 MEDIUM
Other records, highest priority first
- TI-2025-27248 Improper certificate validation in Siemens COMOS V10.6Priority MEDIUM 41
Timeline
- 2026-10-02 Threatist record created from CVE-2025-40800
- 2026-10-03 Alias added: GHSA-xg9v-jc69-p54f
References
More Siemens vulnerabilities
- TI-2026-20057 Authentication bypass in Fortinet FortiWeb KEVCVSS 3.1CRITICAL 9.4
- TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
- TI-2025-18911 Heap-based buffer overflow in Fortinet FortiSwitchManager KEVCVSS 3.1CRITICAL 9.8
- TI-2025-09686 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.8
- TI-2022-07142 Code injection in Spring Framework KEVCVSS 3.1CRITICAL 9.8
- TI-2021-19919 Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints KEVCVSS 3.1CRITICAL 10.0
Sources
- CVE-2025-40800 · CVE Program
- CVE-2025-40800 · NVD
- FIRST EPSS
- GHSA-xg9v-jc69-p54f · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences