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CVE-2026-77554 is an improper input validation vulnerability in Ubiquiti UniFi Talk Application versions 5.2.7 and earlier. Insufficient validation of network-accessible input can permit command injection on the host device running UniFi Talk. The vulnerability is rated Critical with a CVSS v3.1 base score of 10.0 and is fixed in UniFi Talk Application version 5.3.2.
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No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
12 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An improper input-validation flaw in the UniFi Talk Application that permits a network-accessible attacker to perform command injection on the host device.
Critical command-injection vulnerability in UniFi Talk Application.
A maximum-severity command-injection vulnerability in the UniFi Talk Application that can be exploited remotely by an unauthenticated attacker without user interaction, enabling command execution.
A CVSS 10.0 improper-access-control vulnerability in Ubiquiti UniFi products that could allow an attacker to obtain privileges on the device or application.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.