CVE-2026-54408Network attack vector

Unauthenticated data-stream access via authorization bypass

Published Jul 2, 2026 · Updated Jul 2, 2026

Improper access control in Ubiquiti Inc. UniFi Protect Application before 7.1.83 allows remote attackers to bypass data-stream authentication. Ubiquiti has not published the affected endpoint or the access-control operation that mishandles unauthenticated streaming requests. Network access is required, and successful exploitation permits unauthorized reading of protected stream data; no additional operation-level consequence is published.

CVSS severity8.6
High
EPSS probability0.57%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Ubiquiti Inc. UniFi Protect Application before 7.1.83 allows remote attackers to bypass data-stream authentication. Ubiquiti has not published the affected endpoint or the access-control operation that mishandles unauthenticated streaming requests. Network access is required, and successful exploitation permits unauthorized reading of protected stream data; no additional operation-level consequence is published.

The record

CVE
CVE-2026-54408
Published
Jul 2, 2026
Updated
Jul 2, 2026
Vendor
Ubiquiti Inc.
Product
UniFi Protect Application
Classifications
CWE-284, T1125
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 2, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <7.1.83

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Ubiquiti Inc. · UniFi Protect Applicationversion=0 <7.1.83

Published CVSS scores

8.6HackerOneCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control
T1125Video Capture

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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