---
id: 6725
title: "Flexense SyncBreeze – Unauthenticated Remote Code Execution (0DAY-2025-0002)"
severity: critical
vendor: "Flexense"
product: "SyncBreeze"
source_domain: crowdfense.com
source_url: "https://www.crowdfense.com/flexense-syncbreeze-unauthenticated-remote-code-execution/"
published_at: "2026-08-25T06:58:07Z"
tags: ["rce", "zero-day", "authentication-bypass", "authentication", "vulnerability", "exploit-chain", "syncbreeze", "flexense"]
phying_url: "https://phying.com/item/6725"
lang: en
---

# Flexense SyncBreeze – Unauthenticated Remote Code Execution (0DAY-2025-0002)

## Summary

Crowdfense discloses an unauthenticated RCE chain in Flexense SyncBreeze (0DAY-2025-0002), silently patched in May 2026: an authentication bypass grants arbitrary file operations, which chain with a Space Monitor command-trigger flaw to reach SYSTEM-level logical RCE; exploit notes included.

## Why it matters

This vulnerability coverage helps defenders validate exposure and prioritize remediation.

## Intelligence Metadata

- **Sources:** crowdfense.com
- **Vendor:** Flexense
- **Product:** SyncBreeze
- **Published:** 2026-08-25T06:58:07Z
- **Original:** https://www.crowdfense.com/flexense-syncbreeze-unauthenticated-remote-code-execution/
- **Phying News:** https://phying.com/item/6725