CVE-2025-34117: exploitation status and patch state
CVE-2025-34117 · EPSS 20%
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.
Is CVE-2025-34117 exploited?
Not in the CISA KEV catalog.
EPSS puts exploitation in the next 30 days at 20%.
Public exploit code: packaged in a public tool.
Which products and versions are affected?
No affected package list recorded here yet.
Is there a patch?
No patch identifier recorded here yet.
What PlainSec published about CVE-2025-34117
PlainSec has not published a story about this CVE.