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CVE-2017-12477

78
FAUCET Score

CVE-2017-12477 is a critical authentication bypass vulnerability affecting Unitrends Backup (UB) versions prior to 10.0.0. This flaw in the bpserverd proprietary protocol allows a remote attacker to bypass authentication and execute arbitrary commands with root privileges on the target system. With a CVSS score of 9.8 (CRITICAL), this vulnerability is easily exploitable over the network with low attack complexity and no user interaction required, leading to complete compromise of confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, exploit code, including a Metasploit module, is publicly available, indicating a high potential for exploitation. Despite this, there is no recorded community discussion or media coverage, which is typical for a large percentage of CVEs.

Impacted Technologies

VendorProductVersion(s)CPE
< 10.0CPE matchmatch criteria
cpe:2.3:a:kaseya:unitrends_backup:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
68.22%
Probability of exploitation in next 30 days
EPSS Percentile
99.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
Metasploit: Unitrends UEB bpserverd authentication bypass RCE · Aug 8, 2017
ExploitDB: EDB-43031 · Oct 23, 2017
This CVE's current EPSS score of 0.6822 is in the 97th percentile among its peer group of 36,833 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

support.unitrends.com / UnitrendsBackup/s/article/000005755
Vendor Advisory
exploit-db.com / exploits/43031
ExploitThird Party AdvisoryVDB Entry