Ubiquiti UniFi Talk Application up to 5.2.1 access control

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.69

Summaryinfo

A vulnerability, which was classified as critical, was found in Ubiquiti UniFi Talk Application up to 5.2.1. Affected by this vulnerability is an unknown functionality. Executing a manipulation can lead to access control. This vulnerability appears as CVE-2026-55119. The attack may be performed from remote. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Ubiquiti UniFi Talk Application up to 5.2.1. This vulnerability affects some unknown functionality. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at community.ui.com. This vulnerability was named CVE-2026-55119 since 06/16/2026. The exploitation appears to be easy. The attack can be initiated remotely. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

Upgrading to version 5.2.2 eliminates this vulnerability. The upgrade is hosted for download at community.ui.com.

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Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.2
VulDB Meta Temp Score: 7.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 8.1
CNA Vector (hackerone): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: UniFi Talk Application 5.2.2

Timelineinfo

06/16/2026 CVE reserved
07/02/2026 +16 days Advisory disclosed
07/02/2026 +0 days VulDB entry created
07/02/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: community.ui.com
Status: Confirmed

CVE: CVE-2026-55119 (🔒)
GCVE (CVE): GCVE-0-2026-55119
GCVE (VulDB): GCVE-100-375958

Entryinfo

Created: 07/02/2026 17:41
Changes: 07/02/2026 17:41 (64)
Complete: 🔍
Cache ID: 216::103

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