How severe is CVE-2017-3791?

CVE-2017-3791 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-3791 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-3791?

CVE-2017-3791 primarily affects Cisco Cisco Prime Home. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-3791?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2017-3791 published?

CVE-2017-3791 was published on 2017-02-01 and last updated on 2026-06-17.

CVE-2017-3791

CVE-2017-3791 is a critical-severity vulnerability in Cisco Cisco Prime Home with a CVSS 3.x base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

Severity: Critical (CVSS 3.x base score 10.0)
CVSS v2: 10.0
EPSS exploit prediction: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Cisco Cisco Prime Home
Published: 2017-02-01
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2017-3791?: 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.
How severe is CVE-2017-3791?: CVE-2017-3791 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-3791 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-3791?: CVE-2017-3791 primarily affects Cisco Cisco Prime Home. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-3791?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2017-3791 published?: CVE-2017-3791 was published on 2017-02-01 and last updated on 2026-06-17.

References

Affected products (6)

cpe:2.3:a:cisco:cisco_prime_home:6.3.0.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:cisco_prime_home:6.3.1.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:cisco_prime_home:6.4.0.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:cisco_prime_home:6.4.1.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:cisco_prime_home:6.4.2.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:cisco_prime_home:6.4.2.1:*:*:*:*:*:*:*

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