Is CVE-2021-47807 actively exploited?

No active exploitation of CVE-2021-47807 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-47807 be exploited remotely?

No. CVE-2021-47807 requires local access to exploit.

What is the CVSS score of CVE-2021-47807?

CVE-2021-47807 has a CVSS score of 7.8 (HIGH).

HOME VULNERABILITIESCVE-2021-47807

HIGH

CVE-2021-47807

CWE-428Published: January 16, 2026· Updated: Jun 17, 2026

7.8

CVSS v3.1

Official Description

Sync Breeze 13.6.18 contains an unquoted service path vulnerability in its Windows service configuration that allows local attackers to potentially execute arbitrary code. Attackers can exploit the unquoted path in service binaries located in 'Program Files' directories to inject malicious executables and escalate privileges.

NVD Source

Technical Analysis

CVE-2021-47807 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.