A vulnerability has been found in Poly CCX 400, CCX 600, Trio 8800 and Trio C60 and classified as problematic. Affected by this vulnerability is an unknown functionality of the component Web Interface. The manipulation leads to protection mechanism failure. The attack can be launched remotely. The vendor explains that they do not regard this as a vulnerability as this is a feature that they offer to their customers who have a variety of environmental needs that are met through different firmware builds. To avoid potential roll-back attacks, they remove vulnerable builds from the public servers as a remediation effort. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-249259.
Conclusion & alert: CVE-2023-4466 is rated Low Risk (20.5/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.10%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2025-11-21 | 0.46% | 0.10% | -0.36% |
| 2 | 2025-11-18 | 0.11% | 0.46% | +0.36% |
| 3 | 2025-04-15 | — | 0.11% | — |
Full EPSS history (8 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 2.7 | 3.1 | LOW |
|
1.2 | 1.4 | [email protected] |
| 4.9 | 3.1 | MEDIUM |
|
1.2 | 3.6 | [email protected] |
| 3.3 | 2.0 | LOW |
|
6.4 | 2.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| poly | ccx_400_firmware | — | cpe:2.3:o:poly:ccx_400_firmware:-:*:*:*:*:*:*:* |
| poly | ccx_600_firmware | — | cpe:2.3:o:poly:ccx_600_firmware:-:*:*:*:*:*:*:* |
| poly | trio_8800_firmware | — | cpe:2.3:o:poly:trio_8800_firmware:-:*:*:*:*:*:*:* |
| poly | trio_c60_firmware | — | cpe:2.3:o:poly:trio_c60_firmware:-:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://fahrplan.events.ccc.de/congress/2023/fahrplan/events/11919.html | Not Applicable |
| https://github.com/modzero/MZ-23-01-Poly-VoIP-Devices | |
| https://modzero.com/en/advisories/mz-23-01-poly-voip/ | |
| https://vuldb.com/?ctiid.249259 | Permissions Required Third Party Advisory VDB Entry |
| https://vuldb.com/?id.249259 | Third Party Advisory VDB Entry |