CVE-2025-34117: Netcore / Netis Routers RCE via UDP Port 53413 Backdoor
Netcore Technology · Router firmware
Affected: Netcore Technology Router firmware · Exploitation: likely to be exploited (10% or more)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 97% of scored CVEs
DescriptionCVE.org
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.
Affected products2
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Netcore Technology · Router firmwarePrior to August 2014
- Netis · Router firmwarePrior to August 2014
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Likely to be exploited (10% or more). EPSS gives it a 10% or higher chance of exploitation in the next 30 days.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- Netcore Technology
- Published
- July 2025
CoverageNo articles yet
No CyberSIXT article names CVE-2025-34117 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.