CVE-2026-77549
CVE CVE-2026-77549EUVD EUVD-2026-66398Published 2026-08-26T10:30:06.000ZLast changed 2026-08-27T03:56:37.000ZCVSS 9.0
What the advisory describes
A malicious actor with access to the network and under certain conditions could exploit an Improper Neutralization of CRLF Sequences vulnerability found in certain devices running UniFi OS to bypass authentication to such UniFi OS devices or instances.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- @clerk — express 0 <4.0.17
- Ubiquiti Inc — Cloud Gateways 0 <5.1.31
- Ubiquiti Inc — Cloud Keys 0 <5.1.31
- Ubiquiti Inc — Dream Machines 0 <5.1.31
- Ubiquiti Inc — Dream Routers 0 <5.1.31
- Ubiquiti Inc — Dream Wall 0 <5.1.31
- Ubiquiti Inc — Enterprise Firewall Core 0 <5.1.31
- Ubiquiti Inc — Enterprise Fortress Gateway 0 <5.1.31
- Ubiquiti Inc — Enterprise Network Attached Storage 0 <5.1.31
- Ubiquiti Inc — Enterprise Network Video Recorders 0 <5.1.31
- Ubiquiti Inc — Express 7 0 <5.1.31
- Ubiquiti Inc — Network Attached Storage 0 <5.1.32
- Ubiquiti Inc — Network Video Recorders 0 <5.1.31
- Ubiquiti Inc — UniFi OS Server 0 <5.1.37
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Ubiquiti — UniFi OS Server
Does this concern one of your customers?
This page cannot answer that — it does not know your estate. Whoever has recorded their environments gets the answer the morning after publication, together with a paragraph they can forward to the customer unedited.
Try it for 28 daysPatchlage reports hits and suspected hits. About everything else this system says nothing — neither this page nor the situation report ever claims that an estate is safe.