CVE-2026-79391CWE-306

CVE-2026-79391

Critical · published September 5, 2026

CVSS v3.1
9.8
EPSS
1%
Percentile
53.5
In the wild
Unconfirmed
What it is

No authentication exists in the MQTT service of Trueview 6.0.23.4. The MQTT broker accepts client connections on TCP port 1883 without requiring authentication, allowing a remote attacker with network access to establish an MQTT session and perform unauthorized publish or subscribe operations.

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
Not supplied
EPSS
0.00722 · 53.5th percentile
Weakness
CWE-306 · Missing Authentication for Critical Function
Published
2026-09-05T00:17Z
References (1)
https://github.com/EmbdCDACHyd/CVE/blob/main/CVE-2026-79391/README.md · [email protected]
EPSS history
Timeline
  • 06 SEP 03:33Z
    EPSS moved — → 0%
    epss
  • 04 SEP 00:00Z
    No authentication exists in the MQTT service of Trueview 6.0.23.4
    cvelistv5