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TI-2025-28291 Aliases CVE-2025-43596GHSA-9r52-rcmc-x62w

MSP360 Backup (for Windows) insecure filesystem permissions

Priority HIGH 72CWE-276Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

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).

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00448 39th percentileScored 2026-11-07
Fix Fixed Backup (MSP360): 8.1.1.19

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MSP360Backup8.08.1.1.19Patch availableCNA
  • Backup VendorMSP360 Affected 8.0 Fixed in 8.1.1.19 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:msp360:backup:*:*:*:*:*:*:*:*8.0 to before 8.1.1.19VulnerableMSP360
  • cpe:2.3:a:msp360:backup:*:*:*:*:*:*:*:* Versions 8.0 to before 8.1.1.19 Vulnerable ·MSP360

Remediation

  • Fix · CNA Backup (MSP360) Fixed in 8.1.1.19

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-43596
  2. 2026-10-03 Alias added: GHSA-9r52-rcmc-x62w

References

Advisory 2

Other 2

  • TI-2025-28290 MSP360 Backup (for Linux) insecure filesystem permissions CVSS 4.0HIGH 8.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences