CVE-2021-47807CWE-428

Sync Breeze 13.6.18 - 'Multiple' Unquoted Service Path

High · published January 15, 2026

CVSS v4.0
8.5
EPSS
0%
Percentile
12.7
In the wild
Unconfirmed
What it is

⚡ A sneaky unquoted service path in Sync Breeze 13.6.18 could let local attackers execute arbitrary code — and yes, that’s as problematic as it sounds! 🔥 Think of it like building a restaurant without checking the menu for allergens; if a dangerous ingredient slips through, it could ruin the dining experience for everyone. In this case, the service path is that unchecked ingredient, allowing bad actors to serve up malicious code without anyone noticing! An attacker with local access could exploit this flaw to inject and execute harmful executables, potentially gaining escalated privileges. This could lead to a complete takeover of the affected system, allowing them to access sensitive data, manipulate settings, or even spread to other systems in the network. Absolutely devastating!

Put simply

Think of it like building a restaurant without checking the menu for allergens; if a dangerous ingredient slips through, it could ruin the dining experience for everyone. In this case, the service path is that unchecked ingredient, allowing bad actors to serve up malicious code without anyone noticing! The unquoted service path vulnerability in Sync Breeze allows attackers to execute arbitrary code by placing a malicious executable in a service path that the system does not properly validate. This happens in the Windows service configuration, where it fails to enclose paths with spaces in quotes.

What to do

An attacker with local access could exploit this flaw to inject and execute harmful executables, potentially gaining escalated privileges. This could lead to a complete takeover of the affected system, allowing them to access sensitive data, manipulate settings, or even spread to other systems in the network. Absolutely devastating! To protect your systems, ensure you upgrade to the patched version that addresses this issue. Additionally, review the configuration and modify any unquoted service paths to be properly quoted. It's also wise to conduct regular security audits to catch similar flaws in the future! You've got this! Follow the steps, and you'll secure your system in no time! 🛡️

The record
Technical detail
CVSS v4.0
8.5 · HIGH
Vector
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
EPSS
0.00227 · 12.7th percentile
Weakness
CWE-428 · Unquoted Search Path or Element
Published
2026-01-15T23:25Z
EPSS history
Timeline
  • 15 JAN 23:25Z
    Sync Breeze 13.6.18 - 'Multiple' Unquoted Service Path
    cvelistv5