Security readout for executives and security teams
This is a legacy Siemens industrial HMI file-handling flaw. When Transfer Mode is enabled, a remote attacker can abuse directory traversal to read, change, delete, create, or execute files on affected WinCC/HMI systems. In production OT environments, that can undermine operator screens and runtime integrity, so exposed legacy assets need targeted review. Most likely exposure is legacy Siemens WinCC flexible, WinCC V11, SIMATIC HMI panels, or related runtimes reachable on OT networks with Transfer Mode enabled. Internet exposure is not established by the provided sources. Treat as high priority for OT environments running legacy Siemens HMI software. The weakness can affect file integrity and runtime behavior, but exposure depends on Transfer Mode and reachability. Focus first on asset discovery, segmentation, and vendor guidance. Mitigation focus: Identify affected Siemens WinCC and SIMATIC HMI assets in OT inventories.; Disable Transfer Mode where it is not operationally required.; Restrict network access to HMI transfer services and engineering workstations..
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
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ATT&CK lookup starting points
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File access behavior lookup
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2011-4876 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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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
- simatic-hmiload-dir-traversal(71450)CVE reference · vdb-entry, x_refsource_XF
Products and packages named in the record
CWE details
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