Critical severity · published Jun 12, 2026
CVE-2026-47369
A malicious actor with access to the network and low privileges could exploit an Improper Input Validation vulnerability found in certain devices running UniFi OS to escalate…
9.9
CVSS
0.3%
EPSS
No
On KEV
Description
A malicious actor with access to the network and low privileges could exploit an Improper Input Validation vulnerability found in certain devices running UniFi OS to escalate privileges within such UniFi OS devices or instances.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 23% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EF
EFG · Ubiquiti Inc
before 5.1.15 · source: vendor
EN
ENVR · Ubiquiti Inc
before 5.1.15 · source: vendor
EN
ENVR-Core · Ubiquiti Inc
before 5.1.15 · source: vendor
EX
Express · Ubiquiti Inc
before 4.0.15 · source: vendor
E7
Express 7 · Ubiquiti Inc
before 5.1.15 · source: vendor
UC
UCG-Fiber · Ubiquiti Inc
before 5.1.15 · source: vendor
UC
UCG-Industrial · Ubiquiti Inc
before 5.1.15 · source: vendor
UC
UCG-Max · Ubiquiti Inc
before 5.1.15 · source: vendor
UC
UCG-Ultra · Ubiquiti Inc
before 5.1.15 · source: vendor
UC
UCK · Ubiquiti Inc
before 5.1.15 · source: vendor
UC
UCK-Enterprise · Ubiquiti Inc
before 5.1.15 · source: vendor
UC
UCKP · Ubiquiti Inc
before 5.1.15 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-47369
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-47369
community.ui.com
https://community.ui.com/releases/Security-Advisory-Bulletin-065-065/aa46a22b-fc43-4eae-9382-6fc8feda967a
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