CVE-2026-69658CWE-319

CVE-2026-69658

Critical · published August 28, 2026

CVSS v3.1
9.8
EPSS
0%
Percentile
26.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
9.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00344 · 26.7th percentile
Weakness
CWE-319 · Cleartext Transmission of Sensitive Information
Published
2026-08-28T04:18Z
References (2)
https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-237-06.json · [email protected]https://www.cisa.gov/news-events/ics-advisories/icsa-26-237-06 · [email protected]
EPSS history
Timeline
  • 27 AUG 21:37Z
    Ebyte NE2-D11 Cleartext Transmission of Sensitive Information
    cvelistv5