Is CVE-2017-3791 actively exploited?

No active exploitation of CVE-2017-3791 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2017-3791 be exploited remotely?

Yes. CVE-2017-3791 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2017-3791?

CVE-2017-3791 has a CVSS score of 10.0 (CRITICAL).

HOME VULNERABILITIESCVE-2017-3791

CRITICAL

CVE-2017-3791

CWE-287Published: February 1, 2017· Updated: Jun 17, 2026

10.0

CVSS v3.1

Official Description

A vulnerability in the web-based GUI of Cisco Prime Home could allow an unauthenticated, remote attacker to bypass authentication and execute actions with administrator privileges. The vulnerability is due to a processing error in the role-based access control (RBAC) of URLs. An attacker could exploit this vulnerability by sending API commands via HTTP to a particular URL without prior authentication. An exploit could allow the attacker to perform any actions in Cisco Prime Home with administrator privileges. This vulnerability affects Cisco Prime Home versions from 6.3.0.0 to the first fixed release 6.5.0.1. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. Cisco Bug IDs: CSCvb49837.

NVD Source

Technical Analysis

CVE-2017-3791 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 10.0.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.

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