CVE-2018-25134CWE-306

Synaccess netBooter NP-02x/NP-08x 6.8 Authentication Bypass via webNewAcct.cgi

Critical · published December 24, 2025

CVSS v4.0
9.3
EPSS
1%
Percentile
50.0
In the wild
Unconfirmed
What it is

🚨 A sneaky authentication bypass lurks in Synaccess netBooter NP-02x/NP-08x! Unauthenticated attackers can create admin accounts with just a crafted POST request! 🔥 Think of it like a hotel where anyone can check in as the manager without ever showing a reservation! The front desk is ready to hand over the keys to the whole place without any ID check — and that's risky business! If exploited, an attacker could stroll right in and take control of power supply management. This means they could turn off critical systems, leading to downtime, data loss, or even security breaches — a truly devastating scenario!

Put simply

Think of it like a hotel where anyone can check in as the manager without ever showing a reservation! The front desk is ready to hand over the keys to the whole place without any ID check — and that's risky business! This vulnerability stems from a missing control check in the webNewAcct.cgi script, allowing unauthenticated requests to create unauthorized admin user accounts. Essentially, anyone can exploit this flaw to gain administrative privileges without proper authentication.

What to do

If exploited, an attacker could stroll right in and take control of power supply management. This means they could turn off critical systems, leading to downtime, data loss, or even security breaches — a truly devastating scenario! To protect yourself, patch your netBooter to version 6.9 immediately. Additionally, review your network security settings to prevent unauthorized access and limit exposure of sensitive services. Keeping your infrastructure secure is paramount! You've got this! Follow these steps, and you'll have your systems locked down in no time! 🛡️

The record
Technical detail
CVSS v4.0
9.3 · CRITICAL
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00639 · 50.0th percentile
Weakness
CWE-306 · Missing Authentication for Critical Function
Published
2025-12-24T19:27Z
EPSS history
Timeline
  • 24 DEC 19:27Z
    Synaccess netBooter NP-02x/NP-08x 6.8 Authentication Bypass via webNewAcct.cgi
    cvelistv5