CVE-2025-5474 HIGH

CVE-2025-5474: 2BrightSparks SyncBackFree Link Following Local Privilege Escalation Vulnerability

Vendor 2Brightsparks
Product SyncBackFree
Weakness CWE-59
Published June 6, 2025
Last update June 9, 2025

CVSS base score

7.3/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction Required
Confidentiality High
Integrity High

CVSS vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

2BrightSparks SyncBackFree Link Following Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of 2BrightSparks SyncBackFree. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. User interaction on the part of an administrator is also required. The specific flaw exists within the Mirror functionality. By creating a junction, an attacker can abuse the service to delete arbitrary files. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-26962.

Key dates

02Disclosure timeline

June 6, 2025 CVE published
June 9, 2025 Record updated