CVE-2025-43596 - CVE House
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Status published High CVE-2025-43596

MSP360 Backup (for Windows) insecure filesystem permissions

Vulnerability Description

An insecure file system permissions vulnerability in MSP360 Backup 8.0 allows a low privileged user to execute commands with SYSTEM level privileges using a specially crafted file with an arbitrary file backup target. Upgrade to MSP360 Backup 8.1.1.19 (released on 2025-05-15).

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Matthew Galligan, undefined

References

More from MSP360

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CVE-2025-43595
MSP360 Backup (for Linux) insecure filesystem permissions
High 8.5
CVE-2025-12838
MSP360 Free Backup Link Following Local Privilege Escalation Vulnerability
High 7.3

Affected Vendor

Affected Software

Backup
Vulnerable Versions:
8.0, 8.1.1.19

Timeline

Official Publish: May 22nd, 2025
Last Modified: May 22nd, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

CWE-276

MITRE ATT&CK TTPs

T1222 File and Directory Permissions Modification
Defense Evasion
T1078 Valid Accounts
Persistence
T1574 Hijack Execution Flow
Privilege Escalation
T1021 Remote Services
Lateral Movement
T1005 Data from Local System
Collection