CVE-2021-47807

Sync Breeze 13.6.18 - 'Multiple' Unquoted Service Path

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.

Affected

Syncbreeze · Sync Breeze

CVSS v4.0 VULNCHECK

8.5 HIGHCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 VULNCHECK

7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.23% chance of exploitation in the next 30 days, 13th percentile

Published

2026-01-15

Updated

2026-07-28

Proof-of-concept exploits (1)

• https://www.exploit-db.com/exploits/50023

Security advisories

• https://www.vulncheck.com/advisories/sync-breeze-multiple-unquoted-service-path
• https://www.syncbreeze.com

References

• CVE Record
• NVD entry