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Vulnerability record · CVE-2019-16004 · published 23 September 2020

CVE-2019-16004: Cisco vision dynamic signage director missing authentication for critical function vulnerability

Cisco · Vision Dynamic Signage Director

A vulnerability in the REST API endpoint of Cisco Vision Dynamic Signage Director could allow an unauthenticated, remote attacker to bypass authentication on an affected device. The vulnerability is due to missing authentication on some of the API calls. An attacker could exploit this vulnerability by sending a request to one of the affected calls. A successful exploit could allow the attacker to interact with some parts of the API.

6.5 CVSS 3.1 Medium EPSS 1.0% · top 37.8% CWE-306 · Missing authentication for critical function
6.5CVSS 3.1 base score, v2 6.4
1.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

A vulnerability in the REST API endpoint of Cisco Vision Dynamic Signage Director could allow an unauthenticated, remote attacker to bypass authentication on an affected device. The vulnerability is due to missing authentication on some of the API calls. An attacker could exploit this vulnerability by sending a request to one of the affected calls. A successful exploit could allow the attacker to interact with some parts of the API.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200108-vdsd-auth-bypass Vendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200108-vdsd-auth-bypass Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2019-1917Cisco vision dynamic signage director improper authentication vulnerabilityA vulnerability in the REST API interface of Cisco Vision Dynamic Signage Director could allow an unauthenticated, remote attacker to bypass authenti…EPSS 5.3%6.5CVE-2020-3598Cisco vision dynamic signage director missing authentication for critical function vulnerabilityA vulnerability in the web-based management interface of Cisco Vision Dynamic Signage Director could allow an unauthenticated, remote attacker to acc…EPSS 0.95%6.3CVE-2020-3485Cisco vision dynamic signage director permissions and access controls vulnerabilityA vulnerability in the role-based access control (RBAC) functionality of the web management software of Cisco Vision Dynamic Signage Director could a…EPSS 0.68%6.1CVE-2021-34742Cisco vision dynamic signage director cross-site scripting vulnerabilityA vulnerability in the web-based management interface of Cisco Vision Dynamic Signage Director could allow an unauthenticated, remote attacker to con…EPSS 0.77%5.3CVE-2020-3484Cisco vision dynamic signage director incorrect default permissions vulnerabilityA vulnerability in the web-based management interface of Cisco Vision Dynamic Signage Director could allow an unauthenticated, remote attacker to vie…EPSS 1.1%4.9CVE-2020-3490Cisco vision dynamic signage director path traversal vulnerabilityA vulnerability in the web-based management interface of Cisco Vision Dynamic Signage Director could allow an authenticated, remote attacker with adm…EPSS 3.0%4.9CVE-2020-3450Cisco vision dynamic signage director sql injection vulnerabilityA vulnerability in the web-based management interface of Cisco Vision Dynamic Signage Director could allow an authenticated, remote attacker with adm…EPSS 1.0%4.8CVE-2020-3491Cisco vision dynamic signage director cross-site scripting vulnerabilityA vulnerability in the web-based management interface of Cisco Vision Dynamic Signage Director could allow an authenticated, remote attacker with adm…EPSS 0.62%

Source: NIST National Vulnerability Database (record CVE-2019-16004), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.