Link following in Synapse 3 - CVE-2025-9871
Published: October 1, 2025
Vulnerability identifier: #VU116198
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-9871
CWE-ID: CWE-59
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to an insecure link following issue within the Razer Chroma SDK installer. A local user can create a specially crafted symbolic link to a critical file on the system and overwrite it with privileges of the application.
Affected software
Synapse 3
How to mitigate CVE-2025-9871
Install updates from vendor's website.
Synapse 3 - update to 3.10.730.71519