Description
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 malicious input file with shellcode and jump instructions that overwrite the SEH handler pointer to execute calc.exe or other payloads when imported through the add computers wizard.
Published: 2026-04-22
Score: 8.6 High
EPSS: < 1% Very Low
KEV: No
Impact: Local Arbitrary Code Execution
Action: Immediate Patch
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Wed, 29 Apr 2026 23:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:lizardsystems:terminal_services_manager:*:*:*:*:*:*:*:*

Mon, 27 Apr 2026 20:15:00 +0000

Type Values Removed Values Added
First Time appeared Lizardsystems
Lizardsystems terminal Services Manager
Vendors & Products Lizardsystems
Lizardsystems terminal Services Manager

Thu, 23 Apr 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 22 Apr 2026 15:30:00 +0000

Type Values Removed Values Added
Description 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 malicious input file with shellcode and jump instructions that overwrite the SEH handler pointer to execute calc.exe or other payloads when imported through the add computers wizard.
Title Terminal Services Manager 3.1 Buffer Overflow SEH
Weaknesses CWE-306
References
Metrics cvssV3_1

{'score': 8.4, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.6, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


Subscriptions

Lizardsystems Terminal Services Manager
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-04-23T14:06:26.960Z

Reserved: 2026-04-22T11:21:22.260Z

Link: CVE-2018-25259

cve-icon Vulnrichment

Updated: 2026-04-23T14:06:22.624Z

cve-icon NVD

Status : Analyzed

Published: 2026-04-22T16:16:45.437

Modified: 2026-04-29T23:33:46.737

Link: CVE-2018-25259

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-27T19:55:00Z

Weaknesses