CVE-2026-77554
Received Received - Intake

Command Injection in UniFi Talk Application

Publication date: 2026-08-26

Last updated on: 2026-08-26

Assigner: fe490ce8-0395-4072-90d8-2707e1bdf984

Description
A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi Talk Application to execute a Command Injection on the host device.

CVSS Scores

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Meta Information

Published
2026-08-26
Last Modified
2026-08-26
Generated
2026-08-26
AI Q&A
2026-08-26
EPSS Evaluated
N/A
NVD
CVE-2026-77554
EUVD
EUVD-2026-66403

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
ubiquiti unifi_talk_application *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-20 The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Attack-Flow Graph

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Executive Summary

This is a Command Injection vulnerability in the UniFi Talk Application caused by Improper Input Validation. A malicious actor on the same network can exploit it to execute arbitrary commands on the affected device with high privileges.

Impact Analysis

An attacker could gain full control over the host device running UniFi Talk, leading to potential data theft, system compromise, or further network infiltration. The high CVSS score indicates severe impact.

Mitigation Strategies

Immediately update UniFi Talk Application to the latest patched version. Isolate affected systems from the network if possible. Monitor network traffic for suspicious command injection attempts. Restrict network access to trusted sources only.

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