# CVE-2026-73809

## Summary

- **CVE ID:** CVE-2026-73809
- **Severity:** HIGH
- **CVSS Score:** 8.7 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N)
- **CWE:** CWE-319
- **Published:** Aug 27, 2026
- **Last Modified:** Aug 31, 2026

## Description

A cleartext transmission of sensitive information vulnerability exists 
in certain Ebyte gateway products. The web management interface does not
 adequately protect sensitive communications using transport-layer 
encryption. An attacker with access to network traffic could intercept 
authentication or session-related information transmitted between a user
 and the affected device. Successful exploitation could result in 
disclosure of sensitive information and unauthorized access to device 
management functionality.

## Affected Products

- Ebyte — Ebyte NE2-D11 Firmware (FW-9167-0-11)
- Ebyte — Ebyte NA111-M Firmware (9013-2-17)

## References

- [CNA](https://www.cisa.gov/news-events/ics-advisories/icsa-26-237-06)
- [CNA](https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-237-06.json)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.17%
- **EPSS Percentile:** 6.2

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._