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CVE-2026-54408 – Authentication Bypass for Data Streaming – Ubiquiti UniFi Protect Application (<…

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Summary

CVE-2026-54408 is a high-severity Improper Access Control vulnerability (CWE-284) affecting the Ubiquiti UniFi Protect Application in all versions prior to 7.1.83. An unauthenticated attacker with network access can exploit this flaw to bypass authentication controls and gain unauthorized access to live data streams — including surveillance camera feeds — without any credentials or user interaction. The vulnerability carries a CVSS v3.1 base score of 8.6 (HIGH).

Technical details

  • Root cause: Improper access control enforcement in the UniFi Protect Application fails to authenticate requests destined for data streaming endpoints, allowing them to be reached without valid credentials.
  • Trigger conditions: No credentials, prior access, or user interaction are required. The attacker only needs network-level reachability to the affected UniFi Protect instance.
  • Attack vector: Network (AV:N), low complexity (AC:L), no privileges required (PR:N), no user interaction (UI:N).
  • Impact: Successful exploitation grants unauthorized access to live surveillance data streams. The CVSS impact breakdown (C:H/I:L/A:L) reflects a high confidentiality impact — exposure of live camera feeds — alongside limited integrity and availability consequences. For enterprise environments, this constitutes a serious physical security breach in addition to a data confidentiality violation.

Affected software

  • Ubiquiti UniFi Protect Application — all versions prior to 7.1.83

Severity

  • CVSS v3.1 Base Score: 8.6 (HIGH)
  • Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L

Mitigation and recommended actions

  • Immediate action — patch: Upgrade the UniFi Protect Application to version 7.1.83 or later, as referenced in Ubiquiti Security Advisory Bulletin 066.
  • Network mitigation (if immediate patching is not possible): Restrict internet-facing access to UniFi Protect management and streaming interfaces via firewall rules or network segmentation. Ensure UniFi Protect instances are not directly reachable from untrusted networks.

IONIX Status

The IONIX research team is tracking ongoing exploitation attempts and recommends immediate patching. Potentially affected assets are outlined in this post.

References

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