Patlite NH-FB v1.46 and below was discovered to contain insufficient firmware validation during the upgrade firmware file upload process. This vulnerability allows authenticated attackers to create and upload their own custom-built firmware and inject malicious code. NOTE: the vendor's position is that this is a design choice, not a vulnerability
Conclusion & alert: CVE-2022-38625 is rated Moderate Risk (52.2/100): CVSS High severity, with low exploitation likelihood (EPSS 0.25%). Mandatory action: Review affected assets and schedule remediation.
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 | 2025-05-24 | 0.23% | 0.25% | +0.02% |
| 2 | 2024-07-15 | 0.26% | 0.23% | -0.03% |
| 3 | 2024-03-21 | — | 0.26% | — |
Full EPSS history (6 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 8.8 | 3.1 | HIGH |
|
2.8 | 5.9 | [email protected] |
| 8.8 | 3.1 | HIGH |
|
2.8 | 5.9 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| patlite | nbm-d88n_firmware | <= 1.46 | cpe:2.3:o:patlite:nbm-d88n_firmware:*:*:*:*:*:*:*:* |
| patlite | nhl-3fb1_firmware | <= 1.46 | cpe:2.3:o:patlite:nhl-3fb1_firmware:*:*:*:*:*:*:*:* |
| patlite | nhl-3fv1n_firmware | <= 1.46 | cpe:2.3:o:patlite:nhl-3fv1n_firmware:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://gist.github.com/Nwqda/dfad4e11b545dd40aebca6031d202f66 | Broken Link |
| https://www.patlite.com/network-products/lineup/nh-fb.html | Product Vendor Advisory |
| https://www.youtube.com/watch?v=4r9FH6U2VR8 | Permissions Required |