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 ↗

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

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

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