CVE-2017-12477
CriticalPublic exploitIt was discovered that the bpserverd proprietary protocol in Unitrends Backup (UB) before 10.0.0, as invoked through xinetd, has an issue in which its authentication can be bypassed.
Published Aug 7, 2017 · Updated May 12, 2026
Key Facts
Patch immediately- CVE-2017-12477 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Unitrends Backup (Kaseya).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 68% probability of exploitation in the next 30 days.
- Fixed versions are available, including Unitrends Backup 10.0.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
68%
Higher than 99.3% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
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Description
It was discovered that the bpserverd proprietary protocol in Unitrends Backup (UB) before 10.0.0, as invoked through xinetd, has an issue in which its authentication can be bypassed. A remote attacker could use this issue to execute arbitrary commands with root privilege on the target system.
Affected Products
1 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Unitrends BackupKaseya | See advisory | 10.0 |
Patched Releases
Unitrends Backup
10.0
Timeline
Publicly disclosed
Aug 7, 2017
Last updated
May 12, 2026
Weakness Type
- CWE-287 Improper Authentication
References
- advisoryhttps://support.unitrends.com/UnitrendsBackup/s/article/000005755
- exploitMSF ueb9_bpserverd.rb
- exploitExploitDB-42957
- exploitExploitDB-43031
- exploit43031
FAQ
Common Questions.
It was discovered that the bpserverd proprietary protocol in Unitrends Backup (UB) before 10.0.0, as invoked through xinetd, has an issue in which its authentication can be bypassed.
Affected: Unitrends Backup (Kaseya). The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Unitrends Backup 10.0.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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