CVE-2025-10640CWE-602

CVE-2025-10640

Critical · published October 21, 2025

CVSS v3.1
9.8
EPSS
1%
Percentile
59.3
In the wild
Unconfirmed
What it is

🔥 A missing authentication check on TCP port 12306 of the WorkExaminer server lets attackers skip the login like a VIP pass at a concert! Think of it like a restaurant that only checks IDs at the door but then lets diners order anything they want without verifying who they are—once inside, the kitchen’s ready to serve up anything! An attacker could gain full administrative access to the WorkExaminer Professional console, exposing sensitive monitoring data like screenshots and keystrokes of all users. That’s not just a breach; it’s an absolute invasion of privacy that could compromise an entire organization's security!

Put simply

Think of it like a restaurant that only checks IDs at the door but then lets diners order anything they want without verifying who they are—once inside, the kitchen’s ready to serve up anything! The vulnerability arises from server-side authentication checks being bypassed. The server's reliance on client-side validation allows anyone with access to the TCP port to exploit the issue and authenticate as an administrator without proper credentials.

What to do

An attacker could gain full administrative access to the WorkExaminer Professional console, exposing sensitive monitoring data like screenshots and keystrokes of all users. That’s not just a breach; it’s an absolute invasion of privacy that could compromise an entire organization's security! Patch the server immediately to the latest version and implement strong server-side authentication checks. Regularly audit access to TCP port 12306 and ensure that sensitive data is properly secured and monitored. You've got this! Follow these steps, and you'll lock down your server faster than a superhero can swoop in! 🦸‍♂️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00901 · 59.3th percentile
Weakness
CWE-602 · Client-Side Enforcement of Server-Side Security
Published
2025-10-21T16:15Z
References (2)
EPSS history
Timeline
  • 21 OCT 11:43Z
    Missing Server-Side Authentication Checks in EfficientLab WorkExaminer Professional
    cvelistv5