How severe is CVE-2019-16004?

CVE-2019-16004 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2019-16004 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-16004?

CVE-2019-16004 primarily affects Cisco Vision Dynamic Signage Director. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-16004?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-16004 published?

CVE-2019-16004 was published on 2020-09-23 and last updated on 2026-06-17.

CVE-2019-16004

CVE-2019-16004 is a medium-severity vulnerability in Cisco Vision Dynamic Signage Director with a CVSS 3.x base score of 6.5. 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-306.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 6.4
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-306
Affected product: Cisco Vision Dynamic Signage Director
Published: 2020-09-23
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2019-16004?: 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.
How severe is CVE-2019-16004?: CVE-2019-16004 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2019-16004 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-16004?: CVE-2019-16004 primarily affects Cisco Vision Dynamic Signage Director. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-16004?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-16004 published?: CVE-2019-16004 was published on 2020-09-23 and last updated on 2026-06-17.

References

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

Affected products (3)

cpe:2.3:a:cisco:vision_dynamic_signage_director:*:*:*:*:*:*:*:*
cpe:2.3:a:cisco:vision_dynamic_signage_director:6.2.0:-:*:*:*:*:*:*
cpe:2.3:a:cisco:vision_dynamic_signage_director:6.2.0:sp1:*:*:*:*:*:*

More vulnerabilities in Cisco Vision Dynamic Signage Director

CVE-2019-1917 — Critical (CVSS 9.1): A vulnerability in the REST API interface of Cisco Vision Dynamic Signage Director could allow an unauthenticated,…
CVE-2020-3598 — Medium (CVSS 6.5): A vulnerability in the web-based management interface of Cisco Vision Dynamic Signage Director could allow an…
CVE-2020-3485 — Medium (CVSS 6.3): A vulnerability in the role-based access control (RBAC) functionality of the web management software of Cisco Vision…
CVE-2021-34742 — Medium (CVSS 6.1): A vulnerability in the web-based management interface of Cisco Vision Dynamic Signage Director could allow an…
CVE-2020-3491 — Medium (CVSS 5.5): A vulnerability in the web-based management interface of Cisco Vision Dynamic Signage Director could allow an…
CVE-2020-3484 — Medium (CVSS 5.3): A vulnerability in the web-based management interface of Cisco Vision Dynamic Signage Director could allow an…

All CVEs affecting Cisco Vision Dynamic Signage Director →

Other CWE-306 (Missing Authentication for Critical Function) vulnerabilities

CVE-2026-54309 — Critical (CVSS 10.0): n8n is an open source workflow automation platform. Prior to 2.25.7 and 2.26.2, when @n8n/mcp-browser is run in HTTP…
CVE-2026-50242 — Critical (CVSS 10.0): In JetBrains Hub before 2026.1.13757, 2025.3.148033, 2025.2.148048, 2025.1.148120, 2024.3.148430, 2024.2.148429…
CVE-2026-49257 — Critical (CVSS 10.0): mcp-pinot is a Python-based Model Context Protocol (MCP) server for interacting with Apache Pinot. In versions 3.0.1…
CVE-2026-46846 — Critical (CVSS 10.0): Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Security Framework).…
CVE-2026-46803 — Critical (CVSS 10.0): Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Security Framework).…
CVE-2026-46800 — Critical (CVSS 10.0): Vulnerability in the Oracle WebCenter Sites product of Oracle Fusion Middleware (component: WebCenter Sites).…

Browse all CWE-306 (Missing Authentication for Critical Function) vulnerabilities →