Is CVE-2019-19781 actively exploited?

Yes. CVE-2019-19781 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, which means exploitation in the wild has been confirmed.

Can CVE-2019-19781 be exploited remotely?

The attack vector of CVE-2019-19781 has not been classified yet.

What is the CVSS score of CVE-2019-19781?

CVE-2019-19781 has not received a CVSS score yet.

HOME VULNERABILITIESCVE-2019-19781

HIGHCISA KEVIN THE WILD

CVE-2019-19781

Published: November 3, 2021

EPSS:94.44%probability of exploitation in 30 daysPercentile:100.0th

Official Description

Citrix ADC, Citrix Gateway, and multiple Citrix SD-WAN WANOP appliance models contain an unspecified vulnerability that could allow an unauthenticated attacker to perform code execution.

NVD Source

CISA KEV Advisory

Citrix ADC, Gateway, and SD-WAN WANOP Appliance Code Execution Vulnerability

Citrix ADC, Citrix Gateway, and multiple Citrix SD-WAN WANOP appliance models contain an unspecified vulnerability that could allow an unauthenticated attacker to perform code execution.

Added to KEV: 2021-11-03Federal patch deadline: 2022-05-03⚠ USED IN RANSOMWARE CAMPAIGNS

Required Action (CISA)

Apply updates per vendor instructions.

Risk Analysis

Citrix ADC, Citrix Gateway, and certain Citrix SD-WAN WANOP appliance models contain an unspecified vulnerability that allows an unauthenticated attacker to perform remote code execution. The high EPSS score of 0.94442 indicates a very high likelihood of exploitation, making this a critical vulnerability. This flaw is actively exploited.

This vulnerability is actively exploited in the wild and is included in CISA's KEV catalog. The flaw is remotely exploitable by an unauthenticated attacker.

Recommended Action

Apply the latest security updates from Citrix for affected ADC, Gateway, and SD-WAN WANOP appliances. Implement strong access controls and monitor for unusual activity on these devices.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2019-19781 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CISA has added CVE-2019-19781 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.