CVE-2026-77549

critical · 9

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.

CVSS

0.5%

EPSS (exploit prob.)

43rd

EPSS percentile

2026-08-26

Published

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

Weaknesses

CWE-93

References

https://community.ui.com/releases/Security-Advisory-Bulletin-067/fc4a3488-7c43-4628-8bab-f715e96dbfc9

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-77549