CVE-2025-12838 | THREATINT

Description

MSP360 Free Backup Link Following Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of MSP360 Free Backup. 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 needed additionally. The specific flaw exists within the restore functionality. By creating a junction, an attacker can abuse the service to create arbitrary files. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-27245.

PUBLISHED Reserved 2025-11-06 | Published 2025-12-23 | Updated 2025-12-24 | Assigner zdi

HIGH: 7.3CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Problem types

CWE-59: Improper Link Resolution Before File Access ('Link Following')

Product status

Default status

unknown

8.1.0.620

affected

References

www.zerodayinitiative.com/advisories/ZDI-25-988/ (ZDI-25-988)

cve.org (CVE-2025-12838)

nvd.nist.gov (CVE-2025-12838)

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