Advisory Details

September 30th, 2025

Razer Synapse 3 Chroma Connect Link Following Local Privilege Escalation Vulnerability

ZDI-25-920
ZDI-CAN-26373

CVE ID CVE-2025-9871
CVSS SCORE 7.8, AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AFFECTED VENDORS Razer
AFFECTED PRODUCTS Synapse 3
VULNERABILITY DETAILS

This vulnerability allows local attackers to escalate privileges on affected installations of Razer Synapse 3. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

The specific flaw exists within the Razer Chroma SDK installer. By creating a symbolic link, an attacker can abuse the installer to delete arbitrary files. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM.
ADDITIONAL DETAILS

Fixed in version 3.10.730.71519
DISCLOSURE TIMELINE
  • 2025-03-30 - Vulnerability reported to vendor
  • 2025-09-30 - Coordinated public release of advisory
  • 2025-09-30 - Advisory Updated
CREDIT 0x_alibabas (x.com/0x_alibabas)
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