CVE-2025-5474 json
2BrightSparks SyncBackFree Link Following Local Privilege Escalation Vulnerability
published 2025-06-06 17 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-17357
- cvss
- 7.3
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 27%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 17 mo ago
Exploit prediction
0.34% chance of exploitation in the next 30 days, higher than 27% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 7.3 | CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H |
Affected products
- 2BrightSparks SyncBackFree
Classification
- Weakness
-
- CWE-59 Improper Link Resolution Before File Access
References
-
zerodayinitiative.com
/advisories/ZDI-25-322/
third-party-advisory
Sources
- CVE List CVE-2025-5474
- NVD CVE-2025-5474
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