Security readout for executives and security teams
Plain-English summary
This issue lets a lower-privileged attacker turn a writable TD project folder into a trap. If a more privileged user opens that project in Siemens TD Keypad Designer, attacker-controlled code could run with that user’s permissions. The source states all versions are affected, but gives no CVSS score.
Executive priority
Treat this as a targeted workstation and engineering-tool risk, not a broad internet-facing emergency. Prioritize sites where TD project files move through shared folders or where privileged engineering users open files prepared by less-trusted users.
Technical view
CVE-2018-13806 is a CWE-427 DLL hijacking vulnerability in Siemens TD Keypad Designer. Exploitation requires attacker write access to the directory containing the TD project file and a legitimate user with higher privileges opening that project. Successful exploitation allows code execution as the TD Designer user.
Likely exposure
Exposure is limited to environments using Siemens TD Keypad Designer, especially where TD project directories are shared or writable by less-trusted users. The source bundle identifies all versions as affected but does not name specific deployments, platforms, or patched releases.
Exploitation context
The source states no public exploitation was known at advisory publication, and this CVE is not marked KEV. Exploitation is not remote by itself; it depends on write access to a project directory and user interaction by a more privileged TD Designer user.
Researcher notes
The key exposure question is directory trust. The published description provides clear exploitation preconditions but does not include CVSS, patch status, or evidence of exploitation beyond noting none was known at publication. Avoid assuming broader Siemens product impact from this record alone.
Mitigation direction
- Review Siemens SSA-198330 for current vendor guidance and any available updates.
- Restrict write access to directories containing TD project files.
- Avoid opening TD projects from untrusted or broadly writable locations.
- Run TD Keypad Designer with the least privileges needed for the task.
- Separate project authoring locations from shared drop folders where possible.
Validation and detection
- Inventory systems with Siemens TD Keypad Designer installed.
- Identify all directories used to store TD project files.
- Review permissions for lower-privileged users with write access to those directories.
- Confirm whether privileged users open projects from shared writable locations.
- Check whether Siemens guidance has been applied for each installation.
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-427: 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-2018-13806 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://cert-portal.siemens.com/productcert/pdf/ssa-198330.pdfCVE reference · x_refsource_CONFIRM
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.
Uncontrolled Search Path Element
Uncontrolled Search Path Element represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
