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Vulnerability record · CVE-2026-79391 · published 4 September 2026

CVE-2026-79391: Missing authentication for critical function vulnerability

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.

9.8 CVSS 3.1 Critical EPSS 0.72% · top 47.9% CWE-306 · Missing authentication for critical function Deferred
9.8CVSS 3.1 base score
0.72%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
9 Sep 2026Last modified by NVD

Description

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.

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

References

LinkTags
https://github.com/EmbdCDACHyd/CVE/blob/main/CVE-2026-79391/README.md

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Source: NIST National Vulnerability Database (record CVE-2026-79391), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.