CVE-2018-6328
It was discovered that the Unitrends Backup (UB) before 10.1.0 user interface was exposed to an...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2018-6328- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-287
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2018-6328- Updated
- 2026-11-02
EUVDEUVD-2018-18089 No score
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.
- Record
EUVD-2018-18089- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-743r-2x7m-hrm4
It was discovered that the Unitrends Backup (UB) before 10.1.0 user interface was exposed to an...
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.
- Record
GHSA-743r-2x7m-hrm4- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-287
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Unitrends UEB 10.0 - Root Remote Code Execution | 2018-03-16 |
| Exploit-DB | Unitrends UEB - HTTP API Remote Code Execution (Metasploit) | 2018-10-08 |
| Metasploit | Unitrends UEB http api remote code execution | 2017-08-08 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, Metasploit, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-6328 is a critical vulnerability (CVSS 9.8) in Kaseya Unitrends Backup, published March 14, 2018. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 64.4%, the 99th percentile. No source names a fixed version.