# CVE-2026-55115 — Ubiquiti Inc UniFi Protect Application

> As of 2026-07-02, CVE-2026-55115 is a CRITICAL-severity vulnerability in Ubiquiti Inc UniFi Protect Application, CVSS v3.1 9.9, EPSS 0.4% (38.6th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2026-55115, most recently “CVE-2026-50746: Critical Unauthenticated Command Injection in Ubiquiti UniFi Connect Application (CVSS 10.0)”.

**Last updated:** 2026-07-02

## What is CVE-2026-55115?

A malicious actor with access to the network and low privileges could exploit a Server-Side Request Forgery (SSRF) in UniFi Protect Application to escalate privileges on the host device.

The record classifies CVE-2026-55115 under weakness class [CWE-918](https://intel.threadlinqs.com/cwe/CWE-918). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs low-privilege credentials, needs no user interaction, and has high impact on confidentiality, integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 118 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 9.9 — CRITICAL (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`)
- **EPSS (FIRST):** 0.4% probability of exploitation in the next 30 days, higher than 38.6% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 6.5/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-07-02

## Is CVE-2026-55115 being exploited?

It currently carries a trending score of 20 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [Ubiquiti Inc](https://intel.threadlinqs.com/vendors/ubiquiti): UniFi Protect Application

## How to fix CVE-2026-55115

No vendor patch reference has been recorded for CVE-2026-55115 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-55115

1 tracked threat in the Threadlinqs corpus references CVE-2026-55115, either in the campaign’s CVE list or as an indicator on the campaign record.

- [CVE-2026-50746: Critical Unauthenticated Command Injection in Ubiquiti UniFi Connect Application (CVSS 10.0)](https://intel.threadlinqs.com/threat/TL-2026-1159) — CRITICAL · 2026-07-10

## Sources

Enriched from CVE.org, FIRST EPSS, GitHub Security Advisories. Last verified by Threadlinqs on 2026-10-10.

**Other references**

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

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-55115
Full detection coverage and IOCs for threats exploiting CVE-2026-55115 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp