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CVE-2025-9871VulnerabilityPublished

CVE-2025-9871: Razer Synapse 3 · Link Following

Affects Razer Synapse 3Source CVE Database V5

0

Not known to be exploited · CVSS 7.8 High.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.0 base score
7.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 9% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 29 Oct 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.

What to do

Affected software

ProductAffectedFixed in
Razer Synapse 3Affected
  • =3.10.228.21112
Fixed in–

AI-suggested

Until an official patch is released, European organizations should implement several specific mitigations: 1) Restrict local user permissions to the minimum necessary, preventing unauthorized code execution at any privilege level. 2) Monitor and restrict the creation of symbolic links by non-administrative users, using filesystem auditing tools to detect suspicious link creation activities. 3) Employ application whitelisting and endpoint protection solutions that can detect and block attempts to exploit installer processes or unusual file deletions. 4) Isolate systems running Razer Synapse 3 from sensitive networks or limit their network access to reduce lateral movement opportunities. 5) Educate users about the risks of running untrusted code locally, as initial low-privilege code execution is a prerequisite for exploitation. 6) Regularly review and harden local privilege escalation vectors and maintain up-to-date backups to recover from potential destructive actions. 7) Once available, promptly apply vendor patches and verify their deployment across all affected systems. 8) Consider temporarily uninstalling or disabling Razer Synapse 3 on critical systems if the risk outweighs operational needs.

Description

Razer Synapse 3 Chroma Connect Link Following Local Privilege Escalation Vulnerability. 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. Was ZDI-CAN-26373.

References

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