Back to CVE records
Critical 9.8Published Oct 21, 2025

CVE-2025-10640Missing Server-Side Authentication Checks in EfficientLab WorkExaminer Professional

Updated under an hour ago ()

Does this affect you?

It affects EfficientLab WorkExaminer Professional. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

An unauthenticated attacker with access to TCP port 12306 of the WorkExaminer server can exploit missing server-side authentication checks to bypass the login prompt in the WorkExaminer Professional console to gain administrative access to the WorkExaminer server and therefore all sensitive monitoring data. This includes monitored screenshots and keystrokes of all users. The WorkExaminer Professional console is used for administrative access to the server. Before access to the console is granted administrators must login. Internally, a custom protocol is used to call a respective stored procedure on the MSSQL database. The return value of the call is not validated on the server-side. Instead it is only validated client-side which allows to bypass authentication.

CVSS
9.8 CRITICAL (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-602
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
SEC-VLab
NVD analysis
Deferred
Record last updated
Nov 3, 2025
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
EfficientLab WorkExaminer Professional
efficientlab:workexaminer_professional (from the name)
through 4.0.0.52001
CNA record

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

Your cookie choices
We use essential cookies to run this site, and, only with your consent, an advertising cookie from Google to measure whether our ads lead to sign-ups and subscriptions. See our for details.