CVE-2025-9870: Razer Synapse 3 RazerPhilipsHueUninstall Link Following Local Privilege Escalation Vulnerability

Q: How do I fix CVE-2025-9870?

synapse: upgrade to 3.10.730.71519. Exact commands for each OS are on this page.

Q: Is CVE-2025-9870 being exploited?

CVE-2025-9870 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-9870 affect?

CVE-2025-9870 affects synapse. Severity is high (CVSS 7.8). Razer Synapse 3 RazerPhilipsHueUninstall 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 t

Routine

HIGH 7.8UPGRADE

CVE-2025-9870 is a high-severity flaw (CVSS 7.8) affecting synapse. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Razer Synapse 3 RazerPhilipsHueUninstall 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 Philips HUE module installer. By creating a symbolic link, an attacker

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 91%)
CISA exploited list	No
Weakness	CWE-59
Published	2025-10-29
Last modified	2026-10-08

Publisher (CNA): Zero Day Initiative · Vendor: razer

Last updated 2026-10-08 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-10-29 20:15 UTCPublished CVE record published
2026-10-08 11:10 UTCUpdated Record last modified

razer synapse UPGRADE

Affected: < 3.10.730.71519

Fixed in: 3.10.730.71519

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy synapse || rpm -q synapse || synapse --version

2. UPGRADE to 3.10.730.71519 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade synapse

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade synapse

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-9870?

synapse: upgrade to 3.10.730.71519. Exact commands for each OS are on this page.

Is CVE-2025-9870 being exploited?

CVE-2025-9870 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-9870 affect?

CVE-2025-9870 affects synapse. Severity is high (CVSS 7.8). Razer Synapse 3 RazerPhilipsHueUninstall 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 t

How urgent is CVE-2025-9870?

Priority 30/100. High severity

Related CVEs

CVE-2026-45078 MEDIUM 5.5 UPGRADE Synapse is an open source Matrix homeserver implementation
CVE-2026-45076 LOW 2.7 UPGRADE Synapse is an open source Matrix homeserver implementation
CVE-2025-9869 HIGH 7.8 UPGRADE Razer Synapse 3 Macro Module Link Following Local Privilege Escalation Vulnerability
CVE-2025-9871 HIGH 7.8 UPGRADE Razer Synapse 3 Chroma Connect Link Following Local Privilege Escalation Vulnerability
CVE-2025-30355 HIGH 7.1 UPGRADE Synapse is an open source Matrix homeserver implementation

References

← Back to latest CVEs