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Fencer Vulns
critical 9.8

CVE-2017-12477 in the critical feed json

It was discovered that the bpserverd proprietary protocol in Unitrends Backup (UB) before 10.0.0, as invoked through xinetd, has an issue i…

published 2017-08-07 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-4049

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
68.2%
EPSS 68.2% chance of exploitation in 30 days, percentile 99.3%
public exploits
3
Metasploit, Exploit-DB

Summary

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.

Patch / fix

  • kaseya unitrends_backup 10.0

Timeline

  1. Published
  2. First public exploit (Metasploit exploit/linux/misc/ueb9_bpserverd)

Exploit prediction

68.22% chance of exploitation in the next 30 days, higher than 99.3% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Metasploit exploit/linux/misc/ueb9_bpserverd Unitrends UEB bpserverd authentication bypass RCE metasploit exploit, excellent rank, 2017-08-08
  • EDB-43031 Unitrends UEB 9 - bpserverd Authentication Bypass Remote Command Execution (Metasploit) remote, 2017-10-23
  • EDB-42957 Unitrends UEB 9.1 - 'Unitrends bpserverd' Remote Command Execution remote, 2017-08-08

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.