Synaptics-DisplayLink-privilege escalation vulnerability via a dynamic library sideloading

published 2023-10-11 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-54772

cvss: 5.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 8%
public exploits: 0; none known

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

Patch / fix

fixed in 1

Synaptics DisplayLink USB Graphics Software for Windows 11.2M0

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 2 y ago (2024-09-18)

Exploit prediction

0.19% chance of exploitation in the next 30 days, higher than 8% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.5	CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:H/A:L
NVD	3.1	6.7	CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

Affected products

Synaptics DisplayLink USB Graphics Software for Windows

Classification

Weakness

CWE-269 Improper Privilege Management
CWE-427 Uncontrolled Search Path Element

References

synaptics.com /sites/default/files/nr-154525-tc-synaptics_displaylink_windows_driver_security_brief_-_oct2023.pdf
vendor-advisory
synaptics.com /
product
synaptics.com /products/displaylink-graphics/downloads/windows
product

Sources

CVE List CVE-2023-4936
NVD CVE-2023-4936

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary