What is CVE-2018-25259?

CVE-2018-25259 is a high-severity vulnerability in Lizardsystems Terminal Services Manager, classified under Missing Authentication for Critical Function. CVSS score: 8.4/10. Published 2026-04-22.

How severe is CVE-2018-25259?

High severity. CVSS v3 base score is 8.4 out of 10.

Auth bypass in Lizardsystems Terminal Services Manager

CVE-2018-25259

Terminal Services Manager 3.1 contains a stack-based buffer overflow vulnerability in the computer names field that allows local attackers to execute arbitrary code by triggering structured exception handling. Attackers can craft a malicio…

Vulnerability class: Broken Authentication

EPSS: 0.000 (3.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Lizardsystems Terminal Services Manager — versions 3.1
Lizardsystems Terminal_services_manager

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

ExploitDB-46058 (Exploit, exploit, VDB Entry)
Official Product Homepage (Product, product)
VulnCheck Advisory: Terminal Services Manager 3.1 Buffer Overflow SEH (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2018-25259?: CVE-2018-25259 is a high-severity vulnerability in Lizardsystems Terminal Services Manager, classified under Missing Authentication for Critical Function. CVSS score: 8.4/10. Published 2026-04-22.
How severe is CVE-2018-25259?: High severity. CVSS v3 base score is 8.4 out of 10.