CVE-2019-18371

HIGH EXPLOITED NUCLEI

Millet Router 3G Firmware < 2.28.23 - Unauthenticated Path Traversal via NGINX Alias Misconfiguration

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2019-18371 has been observed exploited in the wild (reported by VulnCheck KEV). EIP tracks 2 public exploits from researchers including UltramanGaia, AjayMT6. A Nuclei detection template is also available.

AI-analyzed exploit summary This repository contains functional exploit code for CVE-2019-18371, demonstrating arbitrary file read and remote command execution vulnerabilities in Xiaomi Mi WiFi R3G routers. The PoC includes detailed technical analysis and operational exploit scripts.

Description

An issue was discovered on Xiaomi Mi WiFi R3G devices before 2.28.23-stable. There is a directory traversal vulnerability to read arbitrary files via a misconfigured NGINX alias, as demonstrated by api-third-party/download/extdisks../etc/config/account. With this vulnerability, the attacker can bypass authentication.

Exploits (2)

nomisec WORKING POC 186 stars
by UltramanGaia · remote
https://github.com/UltramanGaia/Xiaomi_Mi_WiFi_R3G_Vulnerability_POC

This repository contains functional exploit code for CVE-2019-18371, demonstrating arbitrary file read and remote command execution vulnerabilities in Xiaomi Mi WiFi R3G routers. The PoC includes detailed technical analysis and operational exploit scripts.

Classification
Working Poc 100%
Attack Type
Rce | Info Leak | Auth Bypass
Complexity
Moderate
Reliability
Reliable
Target: Xiaomi Mi WiFi R3G before version stable 2.28.23
No auth needed
Prerequisites: Network access to the vulnerable router · Router running a vulnerable firmware version
devstral-2 · analyzed Feb 19, 2026 Full analysis →
nomisec WORKING POC
by AjayMT6 · poc
https://github.com/AjayMT6/UltramanGaia

The repository contains functional exploit code for CVE-2019-18371, demonstrating an arbitrary file read vulnerability and remote command execution in Xiaomi Mi WiFi R3G routers. The PoC leverages a misconfigured NGINX alias for directory traversal and a command injection flaw in speed test functionality.

Classification
Working Poc 95%
Attack Type
Rce | Info Leak | Auth Bypass
Complexity
Moderate
Reliability
Reliable
Target: Xiaomi Mi WiFi R3G before version stable 2.28.23
No auth needed
Prerequisites: Network access to the vulnerable router · Router running a vulnerable firmware version
devstral-2 · analyzed Feb 19, 2026 Full analysis →

Nuclei Templates (1)

Xiaomi Mi WiFi R3G Routers - Local file Inclusion
HIGHby ritikchaddha

Scores

CVSS v3 7.5
EPSS 0.5543
EPSS Percentile 98.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Details

VulnCheck KEV 2025-01-02
CWE
CWE-22
Status published
Products (1)
mi/millet_router_3g_firmware < 2.28.23
Published Oct 23, 2019
Tracked Since Feb 18, 2026