Security readout for executives and security teams
Plain-English summary
This Siemens vulnerability affects several engineering, simulation, visualization, and manufacturing products that include the IAM Client SDK. A logged-in local user could potentially use an untrusted search path weakness to gain higher privileges on the affected machine.
Executive priority
Treat this as a high-priority workstation and engineering-environment patching issue. It is not described as internet-exploitable, but successful abuse could give a local user broad control over an affected machine.
Technical view
CVE-2025-40945 is a CWE-426 untrusted search path issue in Siemens IAM Client SDK components used by listed COMOS, NX, Simcenter, Solid Edge, Teamcenter Visualization, and Tecnomatix versions. CVSS 4.0 is 8.5, with local attack vector, low complexity, low privileges, no user interaction, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is most likely on workstations or servers running the listed Siemens products below the fixed versions, especially shared engineering environments where non-administrative authenticated users have local access.
Exploitation context
The provided sources do not show active exploitation, public exploit availability, or CISA KEV listing. The described attack requires local access by an authenticated user and is not presented as remotely exploitable.
Researcher notes
Evidence supports local authenticated privilege escalation through untrusted search path handling. The source bundle does not provide exploit details, exploitation-in-the-wild evidence, or compensating controls beyond upgrading and consulting Siemens guidance.
Mitigation direction
- Upgrade affected Siemens products to the fixed versions or later listed in the CVE description.
- Review Siemens advisory SSA-288252 for product-specific update packages and deployment guidance.
- Restrict local access to engineering and simulation workstations until updates are applied.
- Prioritize shared systems and machines used by lower-privileged or contractor accounts.
Validation and detection
- Inventory installed Siemens products and exact versions across engineering, PLM, and manufacturing environments.
- Compare installed versions against each affected product threshold in CVE-2025-40945.
- Confirm Siemens IAM Client SDK-dependent products have received the relevant fixed release.
- Review local user access on affected hosts and reduce unnecessary interactive logon rights.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-426: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2025-40945 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8.5 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
2 official scoresWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N——siemensCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H0.85.9siemensVulnerability scoring details
Base CVSS 4.0 score
8.5HighVector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Base CVSS 3.1 score
6.7MediumVector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://cert-portal.siemens.com/productcert/html/ssa-288252.htmlCVE reference, siemens
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Untrusted Search Path
Untrusted Search Path represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.