CVE-2018-5264 json
Ubiquiti UniFi 52 devices, when Hotspot mode is used, allow remote attackers to bypass intended restrictions on "free time" Wi-Fi usage by…
published 2019-06-07 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-17046
- cvss
- 5.9
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.5%
- EPSS 1.5% chance of exploitation in 30 days, percentile 74%
- public exploits
- 0
- none known
Summary
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.
Exploit prediction
1.49% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- red4sec.com https://www.red4sec.com/cve/unifi.txt referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 5.9 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:N/A:P |
Classification
- Weakness
-
- CWE-284 Improper Access Control
References
-
red4sec.com
/cve/unifi.txt
exploit, third-party-advisory
Sources
- CVE List CVE-2018-5264
- NVD CVE-2018-5264
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.