CVE-2026-69658 CRITICAL

CVE-2026-69658: Ebyte NA111-M Cleartext Transmission of Sensitive Information

Vendor Ebyte
Product Ebyte NA111-M Firmware
Weakness CWE-319 · Cleartext transmission
Published August 27, 2026
Last update October 5, 2026

CVSS base score

9.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

MQTT credentials and control traffic are transmitted in cleartext, exposing sensitive information to network-level attackers. This may enable unauthorized device impersonation and disruption of messaging functions.

Key dates

02Disclosure timeline

August 27, 2026 CVE published
October 5, 2026 Record updated