MSP360 Backup (for Linux) 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 4.3.1.115 allows a low privileged user to execute commands with root privileges in the 'Online Backup' folder. Upgrade to MSP360 Backup 4.4 (released on 2025-04-22).
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00451 39th percentileScored 2026-11-07
Fix Fixed Backup (MSP360): 4.4
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| MSP360 | Backup | 4.3.1.115 | 4.4 | Patch available | CNA |
- Backup VendorMSP360 Affected 4.3.1.115 Fixed in 4.4 Patch available CNA
Remediation
- Fix · CNA Backup (MSP360) Fixed in 4.4
Timeline
- 2026-10-02 Threatist record created from CVE-2025-43595
- 2026-10-03 Alias added: GHSA-gjwx-g2ph-472r
More MSP360 Backup vulnerabilities
- TI-2025-28291 MSP360 Backup (for Windows) insecure filesystem permissions CVSS 4.0HIGH 8.5
Sources
- CVE-2025-43595 · CVE Program
- CVE-2025-43595 · NVD
- FIRST EPSS
- GHSA-gjwx-g2ph-472r · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences