KAON routers CVE-2025-7072: hardcoded root credentials
KAON CG3000T and CG3000TC routers contain hardcoded credentials enabling unauthenticated remote root command execution; patches available.
Sourcecert.pl — open the original
What to check
- Applies to
- The 1 CVE named below. Whether you run an affected version is not assessed: check the versions the source lists.
- Exploitation
- No exploitation in the wild and no public exploit is recorded for the CVEs named.
CERT Polska coordinated disclosure of CVE-2025-7072, a critical vulnerability affecting KAON CG3000T and CG3000TC routers. The firmware contains hardcoded credentials stored in cleartext that are shared across all devices of these models. An unauthenticated remote attacker can leverage these credentials to execute arbitrary commands with root privileges on affected routers.
The vulnerability was responsibly reported by Piotr Ługowski. KAON has released patched firmware versions that address this issue: version 1.00.67 for CG3000TC and version 1.00.27 for CG3000T. Organizations and consumers using these router models should immediately upgrade to the fixed firmware versions to eliminate this attack vector.
Hardcoded credential vulnerabilities in network infrastructure devices represent a significant security risk, particularly when credentials are shared across an entire product line. The remote, unauthenticated nature of this exploit path makes it especially attractive for threat actors seeking to compromise edge network devices for initial access or botnet recruitment.
Mentioned in this report
Source reporting: https://cert.pl/en/posts/2026/01/CVE-2025-7072
Free public brief. Slack alerts on the vendors you run come with the paid plans, and a new account gets three days of them, no card.
What this brief leaves out
This page is the free tier: the write-up, the severity, the names. In the app the same report carries live profiles of the CVEs it names. The paid plans add the security research and news reporting the free tier leaves out.
It sits in a corpus of 16,436 reports from 149 sources, 661 of them written in the last seven days, and it grows through the day.
A new account starts with three days of all of it, no card, then keeps the government and CERT reporting free. Slack alerts are a paid-plan feature: name the vendors you run and Slack hears about the reports that touch them, not the rest of the week's. Nothing is charged unless you subscribe.
Create a free account What it costs