CVE-2018-5264

5.9 mediumEPSS 1.5%

Ubiquiti UniFi 52 devices, when Hotspot mode is used, allow remote attackers to bypass intended restrictions on "free time" Wi-Fi usage by sending a /guest/s/default/ request to obtain a cookie, and then using this cookie in a /guest/s/default/login request with the byfree parameter.

Severity

CVSS 3.0

5.9 medium

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 1.5% chance of exploitation in the next 30 days; higher than 74% of CVEs (scores of 2026-10-31)
CWE: CWE-284
Published: 2019-06-07
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

ui:unifi_firmware

References

https://www.red4sec.com/cve/unifi.txt
https://www.red4sec.com/cve/unifi.txt

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