CVE-2025-34117

CriticalCVSS 9.3/10Last modified Jun 17, 2026

Description

A remote code execution vulnerability exists in multiple Netcore and Netis routers models with firmware released prior to August 2014 due to the presence of an undocumented backdoor listener on UDP port 53413. Exact version boundaries remain undocumented. An unauthenticated remote attacker can send specially crafted UDP packets to execute arbitrary commands on the affected device. This backdoor uses a hardcoded authentication mechanism and accepts shell commands post-authentication. Some device models include a non-standard implementation of the `echo` command, which may affect exploitability.

Metrics

CVSS 4.0 9.3/10CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weakness enumeration

CWE-78CWE-306CWE-912

Affected software

No affected versions have been published.

Timeline

Published
Jul 16, 2025
Last modified
Jun 17, 2026
NVD status
Deferred

Related CVEs from 2025

CVE-2025-341188.7A path traversal vulnerability exists in Linknat VOS Manager versions prior to 2.1.9.07, including VOS2009 and early VOS3000 builds, that alCVE-2025-341198.8A remote file disclosure vulnerability exists in EasyCafe Server 2.2.14, exploitable by unauthenticated remote attackers via TCP port 831. TCVE-2025-34126.3A vulnerability, which was classified as critical, was found in mymagicpower AIAS 20250308. Affected is an unknown function of the file 2_trCVE-2025-341208.7An unauthenticated file download vulnerability exists in LimeSurvey versions from 2.0+ up to and including 2.06+ Build 151014. The applicatiCVE-2025-341219.3An unauthenticated arbitrary file upload vulnerability exists in Idera Up.Time Monitoring Station versions up to and including 7.2. The `wizCVE-2025-341238.4A stack-based buffer overflow vulnerability exists in VideoCharge Studio 2.12.3.685 when processing a specially crafted .VSC configuration fCVE-2025-341248.4A buffer overflow vulnerability exists in Heroes of Might and Magic III Complete 4.0.0.0, HD Mod 3.808 build 9, and Demo 1.0.0.0 via malicioCVE-2025-341259.3An unauthenticated command injection vulnerability exists in the cookie handling process of the lighttpd web server on D-Link DSP-W110A1 firCVE-2025-341268.7A path traversal vulnerability exists in RIPS Scanner version 0.54. The vulnerability allows remote attackers to read arbitrary files on theCVE-2025-341279.3A stack-based buffer overflow exists in Achat v0.150 in its default configuration. By sending a specially crafted message to the UDP port 92CVE-2025-341288.6A buffer overflow vulnerability exists in the X360 VideoPlayer ActiveX control (VideoPlayer.ocx) version 2.6 when handling overly long argumCVE-2025-341298.7A command injection vulnerability exists in LILIN Digital Video Recorder (DVR) devices prior to firmware version 2.0b60_20200207 due to insu
CVE-2025-34117: Critical severity, CVSS 9.3 | Vulnix