PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-69658 Ebyte CVE debrief

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-08-28T00:18:08.650Z and has not been modified since then. The vulnerability involves MQTT credentials and control traffic transmitted in cleartext, exposing sensitive information to network-level attackers. This could lead to unauthorized device impersonation and disruption of messaging functions. Organizations using MQTT-based systems, especially in industrial control systems (ICS) and IoT environments, should verify and secure their MQTT configurations to prevent unauthorized access and disruption. The CVSS score is 9.3, classified as CRITICAL. Consider verifying MQTT configurations, implementing secure authentication, monitoring MQTT traffic, and using secure communication protocols like TLS for MQTT.

Vendor
Ebyte
Product
Ebyte NA111-M Firmware
CVSS
CRITICAL 9.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-08-28
Original CVE updated
2026-08-31
Advisory published
2026-08-28
Advisory updated
2026-08-31

Who should care

Organizations using MQTT-based systems, especially those in industrial control systems (ICS) and IoT environments, should be aware of this vulnerability and take necessary precautions to secure their systems.

Technical summary

The vulnerability involves the transmission of MQTT credentials and control traffic in cleartext, making it possible for network-level attackers to intercept sensitive information. This could lead to unauthorized device impersonation and disruption of messaging functions. The vulnerability has a CVSS score of 9.3 and is classified as CRITICAL.

Defensive priority

Organizations using MQTT-based systems should prioritize verifying and securing their MQTT configurations to prevent unauthorized access and disruption.

Recommended defensive actions

  • Verify MQTT configurations to ensure encryption is enabled
  • Implement secure authentication and authorization mechanisms for MQTT devices
  • Monitor MQTT traffic for suspicious activity
  • Consider using secure communication protocols like TLS for MQTT

Evidence notes

The CVE description indicates that 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 CVSS score is 9.3 with a severity of CRITICAL.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-69658 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-69658

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-69658 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-69658

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.