Is CVE-2017-12477 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2017-12477, but active exploitation has not been confirmed.

Can CVE-2017-12477 be exploited remotely?

Yes. CVE-2017-12477 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2017-12477?

CVE-2017-12477 has a CVSS score of 9.8 (CRITICAL).

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CRITICALPOC

CVE-2017-12477

CWE-287Published: August 7, 2017· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2017-12477 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

A proof-of-concept (PoC) exploit exists for CVE-2017-12477. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

From a weakness classification perspective (CWE-287): Authentication bypass vulnerabilities allow attackers to access protected resources without valid credentials.