Medium File handling

CVE-2025-40945 — Untrusted Search Path in Siemens COMOS V10.4.5

A vulnerability has been identified in COMOS V10.4.5 (All versions < V10.4.5.0.2), COMOS V10.6 (All versions < V10.6.1), Designcenter NX (All versions < V2512.7000), Simcenter 3D (All versions < V2512.7000), Simcenter Femap V2506 (All versions < V2506.0003), Simcenter Femap V2512 (All versions < V2512.0002), Simcenter Nastran (All versions < V2606), Simcenter STAR-CCM+ (All versions < V2606), Solid Edge SE2025 (All versions < V225.0 Update 13), Solid Edge SE2026 (All versions < V226.0 Update 04), Teamcenter Visualization V2412 (All versions < V2412.0012), Teamcenter Visualization V2506 (All versions < V2506.0009), Teamcenter Visualization V2512 (All versions < V2512.2605), Tecnomatix Plant Simulation V2404 (All versions < V2404.0022), Tecnomatix Plant Simulation V2504 (All versions < V2504.0010), Tecnomatix Process Simulate (All versions < V2606). Untrusted search path in IAM Client SDK may allow an authenticated user to potentially enable escalation of privilege via local access.

Published Jul 14, 2026 · Updated Oct 15, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP · CNA: siemens

Low

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.

How the score was calculated

Technical severity (medium)+3

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation

Not confirmed

Not in CISA KEV — an absence of record, not proof it is unexploited.

EPSS FIRST

—

No EPSS score.

Affects

Siemens

COMOS V10.4.5 and 15 more

CVSS base

6.7

Medium · 2 source(s)

CISA SSVC assessment CISA

Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.

Exploitation

None

none · proof-of-concept · active

Automatable

can an attacker script the kill-chain steps

Technical impact

Total

partial · total control of the vulnerable component

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

Identify exposed assets running the affected vendor/product/version combinations (Siemens COMOS V10.4.5, Siemens COMOS V10.6, Siemens Designcenter NX…).
No fix documented in the sources: reduce exposure and monitor the vendor advisory.
Search available logs for exploit probes matching the vulnerability class (file handling), errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Vendor	Product	Versions	Status	Source
Siemens	COMOS V10.4.5	< V10.4.5.0.2	Vulnerable	CVE Program (cve.org) e CISA ADP
Siemens	COMOS V10.6	< V10.6.1	Vulnerable	CVE Program (cve.org) e CISA ADP
Siemens	Designcenter NX	< V2512.7000	Vulnerable	CVE Program (cve.org) e CISA ADP
Siemens	Simcenter 3d	< V2512.7000	Vulnerable	CVE Program (cve.org) e CISA ADP
Siemens	Simcenter Femap V2506	< V2506.0003	Vulnerable	CVE Program (cve.org) e CISA ADP
Siemens	Simcenter Femap V2512	< V2512.0002	Vulnerable	CVE Program (cve.org) e CISA ADP
Siemens	Simcenter Nastran	< V2606	Vulnerable	CVE Program (cve.org) e CISA ADP
Siemens	Simcenter STAR-CCM+	< V2606	Vulnerable	CVE Program (cve.org) e CISA ADP
Siemens	Solid Edge Se2025	< V225.0 Update 13	Vulnerable	CVE Program (cve.org) e CISA ADP
Siemens	Solid Edge Se2026	< V226.0 Update 04	Vulnerable	CVE Program (cve.org) e CISA ADP
Siemens	Teamcenter Visualization V2412	< V2412.0012	Vulnerable	CVE Program (cve.org) e CISA ADP
Siemens	Teamcenter Visualization V2506	< V2506.0009	Vulnerable	CVE Program (cve.org) e CISA ADP
Siemens	Teamcenter Visualization V2512	< V2512.2605	Vulnerable	CVE Program (cve.org) e CISA ADP
Siemens	Tecnomatix Plant Simulation V2404	< V2404.0022	Vulnerable	CVE Program (cve.org) e CISA ADP
Siemens	Tecnomatix Plant Simulation V2504	< V2504.0010	Vulnerable	CVE Program (cve.org) e CISA ADP
Siemens	Tecnomatix Process Simulate	< V2606	Vulnerable	CVE Program (cve.org) e CISA ADP

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Attack vector

Local

Attack complexity

Low

Privileges required

High

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

Score	Version	Severity	Expl.	Impact	Scored by
8.5	CVSS 4.0	High	—	—	productcert@siemens.com via NIST National Vulnerability Database
8.5	CVSS 4.0	High	—	—	siemens via CVE Program (cve.org) e CISA ADP
6.7	CVSS 3.1	Medium	0.8	5.9	productcert@siemens.com via NIST National Vulnerability Database
6.7	CVSS 3.1	Medium	—	—	siemens via CVE Program (cve.org) e CISA ADP

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H (score shown at the top: productcert@siemens.com)

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-426 · Untrusted Search Path

Other CVEs with this weakness →

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

Local/physical vector: focus on endpoint telemetry (EDR) from affected hosts.
Monitor file creation in web directories and paths with traversal sequences (../).

endpoint telemetry (EDR)file integrity (FIM)

Timeline

What happened to this CVE, newest first.

2026
Affected products added · siemens/comos v10.4.5, siemens/comos v10.6, siemens/designcenter nx, siemens/simcenter 3d, siemens/simcenter femap v2506
Oct 15, 2026 · CVE Program (cve.org) e CISA ADP
SSVC assessment updated
Oct 15, 2026 · CVE Program (cve.org) e CISA ADP
Record published
Oct 15, 2026
CVSS changed · 6.7
Oct 15, 2026 · NIST National Vulnerability Database
Source status changed · → Deferred
Oct 15, 2026 · NIST National Vulnerability Database
Record created in this database
Oct 15, 2026 · NIST National Vulnerability Database
CVE published
Jul 14, 2026 · siemens

Source activity

Repeated readings are counted rather than listed.

1× Official description updated · Oct 15, 2026 – Oct 15, 2026

References

1 on the record

cert-portal.siemens.com/productcert/html/ssa-288252.html
NIST National Vulnerability Database

Elsewhere on this site

Siemens
every CVE for this vendor

File handling
same class

CWE-426
other pages naming this weakness

Related CVEs (same products)

High CVE-2026-59086 Stack-based Buffer Overflow in Siemens Simcenter Femap Aug 11, 2026
High CVE-2026-50058 Out-of-bounds Read in Siemens Solid Edge Se2025 Aug 11, 2026
High CVE-2026-50061 Use After Free in Siemens Solid Edge Se2025 Aug 11, 2026
High CVE-2026-50060 Use After Free in Siemens Solid Edge Se2025 Aug 11, 2026
High CVE-2026-50062 Out-of-bounds Read in Siemens Solid Edge Se2025 Aug 11, 2026
High CVE-2026-50059 Out-of-bounds Write in Siemens Solid Edge Se2025 Aug 11, 2026

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

No FIRST EPSS score.
No fixed version, patch or mitigation documented.
No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2025-40945 is "Untrusted Search Path in Siemens COMOS V10.4.5", rated Medium. It affects COMOS V10.4.5 (Siemens); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 6.7 describes technical severity. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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