Vulnerability in 2brightsparks Syncbackfree
CVE-2025-5474
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.
EPSS: 0.003 (18.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.
Affected products
- 2brightsparks Syncbackfree — versions 11.3.87.0
Weakness classification (CWE)
References
- zdi-disclosures@trendmicro.com (x_research-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2025-5474?
- CVE-2025-5474 is a high-severity vulnerability in 2brightsparks Syncbackfree, classified under Improper Link Resolution Before File Access. CVSS score: 7.3/10. Published 2025-06-06.
- How severe is CVE-2025-5474?
- High severity. CVSS v3 base score is 7.3 out of 10.