It was discovered that the Unitrends Backup (UB) before 10.1.0 user interface was exposed…
Priority HIGH 78CWE-287Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-287.
Summary
It was discovered that the Unitrends Backup (UB) before 10.1.0 user interface was exposed to an authentication bypass, which then could allow an unauthenticated user to inject arbitrary commands into its /api/hosts parameters using backquotes.
Why it matters now
EPSS 0.64369 99th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-6328
- 2026-10-03 Alias added: GHSA-743r-2x7m-hrm4
References
More Kaseya Unitrends Backup vulnerabilities
- TI-2017-09213 It was discovered that the api/storage web interface in Unitrends Backup (UB) before… CVSS 3.1CRITICAL 9.8
- TI-2017-09212 It was discovered that the bpserverd proprietary protocol in Unitrends Backup (UB) before… CVSS 3.1CRITICAL 9.8
- TI-2017-09214 It was discovered that an issue in the session logic in Unitrends Backup (UB) before… CVSS 3.0HIGH 8.8
- TI-2021-19099 An issue was discovered in Kaseya Unitrends Backup Appliance before 10.5.5. CVSS 3.1CRITICAL 9.8
- TI-2021-19101 An issue was discovered in Kaseya Unitrends Backup Appliance before 10.5.5. CVSS 3.1CRITICAL 9.8
- TI-2021-19108 An issue was discovered in Kaseya Unitrends Backup Appliance before 10.5.5. CVSS 3.1CRITICAL 9.8
Sources
- CVE-2018-6328 · CVE Program
- CVE-2018-6328 · NVD
- FIRST EPSS
- GHSA-743r-2x7m-hrm4 · 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