Security readout for executives and security teams
Plain-English summary
Siemens SCALANCE M875 devices have a command execution flaw in the web interface. A remote attacker must already have administrative authentication and network access to TCP/443, but successful exploitation could let them run operating system commands on the device.
Executive priority
Treat as high priority for any SCALANCE M875 deployment, especially in industrial or remote-access environments. The main business risk is device compromise after admin credential misuse or compromise, not unauthenticated internet-scale exploitation.
Technical view
CVE-2018-4859 is a CWE-78 OS command injection issue affecting Siemens SCALANCE M875 all versions. The source states an authenticated administrative remote attacker with access to the HTTPS web interface could execute arbitrary OS commands and arbitrary code on the device.
Likely exposure
Exposure is limited to environments running SCALANCE M875 where the web interface on TCP/443 is reachable. Risk is materially higher if management access is available from broad networks or if administrator credentials are weak, shared, or compromised.
Exploitation context
The bundled CVE data says no public exploitation was known when Siemens published the advisory. CISA KEV status is false in the provided bundle. Exploitation requires both administrative authentication and network reachability to the web interface.
Researcher notes
The source bundle does not include CVSS details, fixed versions, or a named patch. The affected range is stated as all SCALANCE M875 versions. Avoid claiming active exploitation unless another cited source establishes it.
Mitigation direction
- Review the Siemens advisory for vendor-supported remediation or replacement guidance.
- Restrict TCP/443 web interface access to trusted management networks only.
- Harden administrative accounts and remove shared or unnecessary admin access.
- Monitor device administration activity for unexpected configuration or command behavior.
- Prioritize isolation where patch or upgrade status cannot be confirmed.
Validation and detection
- Inventory environments for Siemens SCALANCE M875 devices.
- Confirm whether TCP/443 management access is reachable beyond trusted admin networks.
- Verify administrative accounts are current, named, and tightly controlled.
- Compare deployed device versions against Siemens advisory guidance.
- Review logs or monitoring for unusual administrative activity.
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-78: Command execution behavior lookup
Command injection weaknesses can lead defenders to review execution techniques and command interpreter telemetry. 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 lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2018-4859 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-977428.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.