---
title: "CVE-2026-107615: GlavSoft TightVNC Server - Remote Code Execution & Privilege Escalation"
description: "GlavSoft TightVNC Server for Windows < 2.8.88 contains an uncontrolled search path element vulnerability caused by loading DLLs without secure search flags, letting local authenticated users execute arbitrary code with SYSTEM privileges."
url: https://panop.io/threat-heartbeat/CVE-2026-107615/
---

# CVE-2026-107615 GlavSoft TightVNC Server - Remote Code Execution & Privilege Escalation

GlavSoft TightVNC Server for Windows < 2.8.88 contains an uncontrolled search path element vulnerability caused by loading DLLs without secure search flags, letting local authenticated users execute arbitrary code with SYSTEM privileges.

CVSS base score 7.8 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.14% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-107615)

## Details

Type

Remote Code Execution

Impact

Remote Code Execution, Privilege Escalation

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Published

8 October 2026

Updated

15 October 2026

Weakness

[CWE-427](https://cwe.mitre.org/data/definitions/427.html)

## Vendor fix

Update to version 2.8.88 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-107615](https://nvd.nist.gov/vuln/detail/CVE-2026-107615)
- [https://sourceforge.net/p/vnc-tight/bugs/1666/](https://sourceforge.net/p/vnc-tight/bugs/1666/)
- [https://www.tightvnc.com/whatsnew.php](https://www.tightvnc.com/whatsnew.php)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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