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Matt D.

F21: ONVIF scope parser stack copies (V3.5.2.1)

original finding or lead

Last updated November 8, 2026

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Document type: local CVE candidate assessment, not a published CVE Record. CVE ID: unassigned. Product scope: Anpviz IPC-D240W-S V3.5.2.1 captured from the owner’s MCA40E camera; the V3.6.3.1 comparison image is an MCA50E image sent in error and was not flashed to this model.

Finding

The old SetScopes/RemoveScopes and event-manager paths have unbounded or insufficiently bounded copies. The new scope handlers add count and length bounds; event-manager parser is removed.

Status in this image: original finding or lead.

Evidence limit: Live crash or code execution was not tested.

Classification and severity

  • Proposed CWE: CWE-121, CWE-787
  • CVSS v4.0 score: Not scored — current evidence does not support a defensible numeric impact/attack vector, this version lacks the issue, or the specific defect was fixed.
  • CVSS v4.0 vector: Not assigned.
  • Scoring basis: Live crash or code execution was not tested.
  • CVE candidacy: Needs coordinator/CNA review for grouping, affected models and version status; do not equate this finding ID with a CVE ID.

Source screenshots

The PNGs are rendered, line-numbered excerpts of existing Ghidra C-like decompilation, not photographs of the Ghidra GUI or recovered vendor source. The original export is authoritative; image selection can omit relevant lines elsewhere in the function.

  • No verified related CVE linked to this specific finding; this is not an exhaustive database search.

Case references

Source exports