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CVE-2025-34117 is a remote code execution vulnerability affecting multiple Netcore and Netis router models running firmware released prior to August 2014. The issue stems from an undocumented backdoor service listening on UDP port 53413. The backdoor implements a hardcoded authentication mechanism and, after successful authentication, accepts shell commands for execution on the device. An unauthenticated remote attacker who can reach the exposed UDP service can send specially crafted packets to trigger command execution. Some affected models reportedly implement a non-standard variant of the echo command, which may influence exploit reliability or payload construction on those devices.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a single Metasploit module targeting a backdoor present in certain Netcore and Netis routers. The exploit leverages a UDP service listening on port 53413, which can be unlocked with the password 'netcore'. Once unlocked, the attacker can send arbitrary shell commands to the router. The module uses Metasploit's command stager to deliver a payload, typically via the echo command, to achieve remote code execution. The exploit supports both MIPS Little Endian and MIPS Big Endian architectures, targeting Linux-based routers. The module includes a check method to determine if the target is vulnerable and if the echo command behaves as expected. The main fingerprintable endpoint is UDP port 53413 on the target device. The exploit is operational and can provide remote shell access or execute arbitrary commands if the target is vulnerable.
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8 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.