CVE-2026-22844 in Node Meetings Hybrid
Summary
by MITRE • 01/20/2026
A Command Injection vulnerability in Zoom Node Multimedia Routers (MMRs) before version 5.2.1716.0 may allow a meeting participant to conduct remote code execution of the MMR via network access.
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Analysis
by VulDB Data Team • 01/23/2026
This vulnerability represents a critical command injection flaw in Zoom Node Multimedia Routers that fundamentally compromises the security posture of video conferencing infrastructure. The issue affects versions prior to 5.2.1716.0 and creates a pathway for authenticated meeting participants to execute arbitrary commands on the affected MMR devices. This type of vulnerability falls under the CWE-77 category of Command Injection, which is classified as a high-severity weakness in the Common Weakness Enumeration framework. The vulnerability's impact is particularly severe because it allows remote code execution through network access, meaning that an attacker does not require physical access or advanced privileges beyond being a legitimate meeting participant.
The technical implementation of this flaw likely involves improper input validation within the MMR's command processing mechanisms. When meeting participants interact with the router's network interfaces or management functions, the system fails to properly sanitize user-supplied data before incorporating it into system commands. This creates an environment where malicious inputs can be interpreted and executed as actual system commands rather than being treated as data. The attack vector is particularly dangerous because it leverages the legitimate authentication mechanisms of the Zoom platform, making it difficult to distinguish between benign and malicious activity. This vulnerability directly maps to techniques described in the MITRE ATT&CK framework under T1059.001 for Command and Scripting Interpreter, where adversaries execute commands through legitimate system interfaces.
The operational impact of this vulnerability extends far beyond simple unauthorized access. Once exploited, attackers can gain complete control over the affected MMR devices, potentially enabling them to manipulate video streams, redirect traffic, or even use the compromised routers as entry points for further attacks within the network. The implications are particularly concerning for organizations relying on Zoom's enterprise-grade infrastructure, as these routers often serve as critical components in their communication networks. The vulnerability essentially transforms legitimate participants into potential attackers, undermining the trust model of the conferencing system. Organizations may experience unauthorized data interception, service disruption, or even complete network compromise if the MMR serves as a gateway or router within their infrastructure.
Mitigation strategies should focus on immediate patch deployment to versions 5.2.1716.0 or later, which would address the underlying command injection flaw through proper input validation and sanitization mechanisms. Network segmentation should be implemented to limit access to MMR devices, ensuring that only authorized administrative personnel can interact with these critical systems. Additional protective measures include implementing strict access controls and monitoring for unusual command execution patterns on the affected devices. Security teams should also consider deploying intrusion detection systems that can identify potential exploitation attempts through anomalous network behavior. Organizations should conduct thorough security assessments of their Zoom infrastructure to identify any other potential vulnerabilities that might have been exploited through this initial compromise. The remediation process should include comprehensive logging and monitoring of all administrative activities on the MMR devices to detect any unauthorized access attempts.