# CVE-2026-55119: Ubiquiti UniFi Talk privilege escalation via improper access control

Source: https://junglewise.ai/threats/cve-2026-55119-ubiquiti-unifi-talk-privilege-escalation-via-improper-access  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-02. Updated: 2026-07-02  
License: CC BY 4.0 with a link back

CVE-2026-55119 · Severity: high · CVSS 8.1 · Published 2026-07-02

Ubiquiti UniFi Talk is a business communication application used for managing VoIP phone systems. A security vulnerability has been identified where an authorized user with low-level access can bypass security controls to gain higher-level administrative privileges. This could allow an internal user to access sensitive communication data or modify system settings without authorization.

Technologies: [Ubiquiti UniFi Talk Application](https://junglewise.ai/threats/technologies/unifi-talk-application). Vendors: [Ubiquiti](https://junglewise.ai/threats/vendors/ubiquiti).

## Quick answers

**Is CVE-2026-55119 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-55119 being exploited in the wild.

**How severe is CVE-2026-55119?** High severity, with a CVSS score of 8.1, published 2 July 2026.

**Which products and versions are affected?** Ubiquiti UniFi Talk Application < 5.2.2.

**Is there a fix for CVE-2026-55119?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-55119 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-55119?** Check whether you run Ubiquiti UniFi Talk Application at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

An improper access control vulnerability (CWE-284) exists in the Ubiquiti UniFi Talk Application prior to version 5.2.2. A malicious actor with network access and existing low-level credentials can exploit this flaw to escalate their privileges to a higher level within the application. The attack vector is network-based and requires low privileges but no user interaction. The vulnerability has been addressed in UniFi Talk Application version 5.2.2.

## Affected products

- Ubiquiti Inc UniFi Talk Application < 5.2.2

## Timeline

- 2026-07-02: advisory
- 2026-07-02: disclosed

## References

- [https://community.ui.com/releases/Security-Advisory-Bulletin-066-066/984eceb3-49c8-4227-942d-671c289b3afc](https://community.ui.com/releases/Security-Advisory-Bulletin-066-066/984eceb3-49c8-4227-942d-671c289b3afc)

## Related threats

- [Ubiquiti UniFi Talk SSRF and authentication bypass](https://junglewise.ai/threats/cve-2026-55113-ubiquiti-unifi-talk-ssrf-and-authentication-bypass)
- [Ubiquiti UniFi Talk SQL injection privilege escalation](https://junglewise.ai/threats/cve-2026-50747-ubiquiti-unifi-talk-sql-injection-privilege-escalation)