F17: Serial-gated UDP control operations (V3.5.2.1)

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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

Reset, reboot, network and factory operations are gated by serial and flag state; the new authentication check also accepts F1.

Status in this image: original finding or lead.

Evidence limit: Operation success and authentication state on each model need a device test.

Classification and severity

• Proposed CWE: CWE-306, CWE-284
• 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: Operation success and authentication state on each model need a device test.
• 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.

• F17: UDP control operation — F17-CLEAR_FACTORY_CFG-old — V3.5.2.1/F17/F17-CLEAR_FACTORY_CFG-old.c lines 15–31; source SHA-256 42e23d2eadeec5e51f93c655139fcd271d6c9989082fd60fc1304b2a5929f5a5.
• F17: UDP control operation — F17-CLEAR_SOFT_SN-old — V3.5.2.1/F17/F17-CLEAR_SOFT_SN-old.c lines 14–30; source SHA-256 43ee0574b5ad3fcc0c1836a377dd67d4af131ad2a6028caf526be7603a9b4bb3.
• F17: UDP control operation — F17-MODE_FACTORY-old — V3.5.2.1/F17/F17-MODE_FACTORY-old.c lines 19–35; source SHA-256 8a7cedac72710af624328eedef697f62db5795d23faa88599263757f86b85fbf.

Related published CVEs

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

Case references

• Evidence index
• Initial public report
• Remediation review
• CERT/CC VRF #26-10-FZTVG; CISA Case #116607.

Source exports

• F17-CLEAR_FACTORY_CFG-old.c
• F17-CLEAR_SOFT_SN-old.c
• F17-MODE_FACTORY-old.c