CVE-2018-15439CWE-798

Cisco Small Business Switches Privileged Access Vulnerability

Critical · published November 8, 2018

CVSS v3.0
9.8
EPSS
50%
Percentile
98.9
In the wild
Unconfirmed
What it is

🚨 An attacker could waltz in and assume full control of your Cisco Small Business Switches, all without logging in! 🔥 This vulnerability is like a thief discovering a secret backdoor to your home that you forgot about — they can unlock everything without you ever realizing until it’s too late. If exploited, a remote attacker could bypass authentication and take over the device, executing commands with full admin privileges. This could lead to unauthorized access, data leaks, or even taking your network hostage — absolutely devastating!

Put simply

This vulnerability is like a thief discovering a secret backdoor to your home that you forgot about — they can unlock everything without you ever realizing until it’s too late. This vulnerability arises from a flaw in the software that allows a privileged user account to be enabled under specific conditions without alerting the system administrators, creating a severe security gap.

What to do

If exploited, a remote attacker could bypass authentication and take over the device, executing commands with full admin privileges. This could lead to unauthorized access, data leaks, or even taking your network hostage — absolutely devastating! Cisco hasn't yet released a patch, so your best bet is to implement the suggested workaround while keeping an eye out for updates. Regularly audit your network settings and maintain tight access controls; having a backup plan is key! You've got this! Following these steps can help safeguard your devices until a fix is released. 🛡️

The record
Technical detail
CVSS v3.0
9.8 · CRITICAL
Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.49742 · 98.9th percentile
Weakness
CWE-798 · Use of Hard-coded Credentials
Published
2018-11-08T17:00Z
EPSS history
Timeline
  • 08 NOV 17:00Z
    Cisco Small Business Switches Privileged Access Vulnerability
    cvelistv5