Critical (9.8). EPSS 0.4% chance of exploitation in the next 30 days.
Ubiquiti U6-LR 6.6.65 was discovered to contain a hardcoded password vulnerability in /etc/shadow, which allows attackers to log in as root. NOTE: In Ubiquiti's view there is no vulnerability as the Hardcoded Password should be after setup not before.
Severity
CVSS 3.1
9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
0.4% chance of exploitation in the next 30 days; higher than 38% of CVEs (scores of 2026-10-31)