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 <…

published 2025-12-09 11 mo ago modified 2026-10-07 33 d ago also EUVD-2025-201929

cvss: 7.4; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 10%
public exploits: 0; none known

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.

Patch / fix

fixed in 7

Siemens COMOS V10.6 V10.6.1
Siemens NX V2412 V2412.8700
Siemens NX V2506 V2506.6000
Siemens Simcenter 3D V2506.6000
Siemens Simcenter Femap V2506.0002
Siemens Solid Edge SE2025 V225.0 Update 10
Siemens Solid Edge SE2026 V226.0 Update 1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-25-345-04 updated 2026-03-12 cvss 7.4

Siemens IAM Client

Siemens COMOS V10.6 < 10.6.1
affected: fixed in V10.6.1 support.sw.siemens.com
Siemens NX V2412 < 2412.8700
affected: fixed in V2412.8700 support.sw.siemens.com
Siemens NX V2506 < 2506.6000
affected: fixed in V2506.6000 support.sw.siemens.com
Siemens Simcenter 3D < 2506.6000
affected: fixed in V2506.6000 support.sw.siemens.com
Siemens Simcenter Femap < 2506.0002
affected: fixed in V2506.0002 support.sw.siemens.com
Siemens Solid Edge SE2025 <V225.0_Update_10
affected: fixed in V225.0 support.sw.siemens.com
Siemens Solid Edge SE2026 <V226.0_Update_1
affected: fixed in V226.0 support.sw.siemens.com

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

cisa ICSA-26-043-03 updated 2026-03-12 cvss 7.4

Siemens COMOS

Siemens COMOS V10.6 < 10.6.1
affected: fixed in V10.6.1 support.sw.siemens.com

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 11 mo ago (2025-12-09)

Exploit prediction

0.21% chance of exploitation in the next 30 days, higher than 10% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.4	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CNA	4.0	9.1	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
CNA	4.0	9.1	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

Siemens COMOS V10.6
Siemens NX V2412
Siemens NX V2506
Siemens Simcenter 3D
Siemens Simcenter Femap
Siemens Solid Edge SE2025
Siemens Solid Edge SE2026

Classification

Weakness

CWE-295 Improper Certificate Validation

References

Sources

CVE List CVE-2025-40800
NVD CVE-2025-40800

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary