What’s Vulnerable › Vulnerabilities

CVE-2023-4936: Synaptics-DisplayLink-privilege escalation vulnerability via a dynamic library sideloading

• Severity: medium (CVSS 6.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-10-11 · updated 2026-06-17
• Weakness: CWE-269

Description

It is possible to sideload a compromised DLL during the installation at elevated privilege.

Affected products

• Synaptics DisplayLink USB Graphics Software for Windows: before 11.2 — fixed in 11.2

How to fix

Upgrade to a fixed version: Synaptics DisplayLink USB Graphics Software for Windows 11.2. Check the vendor advisory for mitigations.

References

• https://www.synaptics.com/
• https://www.synaptics.com/products/displaylink-graphics/downloads/windows
• https://www.synaptics.com/sites/default/files/nr-154525-tc-synaptics_displaylink_windows_driver_security_brief_-_oct2023.pdf
• https://www.synaptics.com/
• https://www.synaptics.com/products/displaylink-graphics/downloads/windows
• https://www.synaptics.com/sites/default/files/nr-154525-tc-synaptics_displaylink_windows_driver_security_brief_-_oct2023.pdf

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