High severity · published Jul 2, 2026
CVE-2026-55119
A malicious actor with access to the network and low privileges could exploit an Improper Access Control vulnerability found in UniFi Talk Application to escalate privileges…
8.1
CVSS
0.4%
EPSS
No
On KEV
Description
A malicious actor with access to the network and low privileges could exploit an Improper Access Control vulnerability found in UniFi Talk Application to escalate privileges within the UniFi Talk Application.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 32% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
UT
UniFi Talk Application · Ubiquiti Inc
before 5.2.2 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-55119
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-55119
Vendor Advisory
https://community.ui.com/releases/Security-Advisory-Bulletin-066-066/984eceb3-49c8-4227-942d-671c289b3afc
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