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CVE-2026-22844 is a critical command injection vulnerability in Zoom Node Multimedia Routers (MMRs) affecting versions prior to 5.2.1716.0, including the MMR modules used by Zoom Node Meetings Hybrid and Zoom Node Meeting Connector deployments. The flaw allows a meeting participant with network access to the MMR to inject operating system commands due to improper handling of input, resulting in remote code execution on the MMR. The vulnerable component is the Multimedia Router responsible for processing meeting media streams in hybrid Zoom environments.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
Repository contains a single Python proof-of-concept exploit (CVE-2026-22844.py) and a README describing the vulnerability and usage. The exploit targets Zoom Node MMR deployments prior to 5.2.1716.0 and performs unauthenticated network-based command injection leading to RCE. Core behavior: the script takes a target base URL and an arbitrary shell command, then iterates over four likely MMR control API paths. It sends an HTTPS POST with JSON body {action:"execute_control", control_command:"shell:<base64>", async:false}. The injected command is wrapped with START/END markers ("echo START; <cmd>; echo END") and base64-encoded to help bypass weak filtering. It treats HTTP 200/201/202/500 as potential success and attempts to extract command output between START/END from the response body. Notable targeting/assumptions: it sets X-Zoom-Meeting-ID (user-supplied or a fake default) and an Authorization: Bearer dummy-token header, implying the vulnerable endpoint may be reachable without strong authentication but may require meeting-context access. TLS verification is disabled (verify=False). The README provides example commands including reverse shell via bash /dev/tcp and file read of /etc/passwd. Overall purpose: operational PoC for remote command execution against exposed Zoom Node MMR control endpoints by exploiting insufficient sanitization of the control_command parameter.
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42 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A command injection vulnerability in Zoom Node Multimedia Routers (MMRs) that could result in remote code execution.
Zoom Node Multimedia Router (MMR) vulnerability that can allow a meeting participant to achieve remote code execution.
A critical command injection in Zoom Node Multimedia Routers (MMRs) enabling a meeting participant to achieve RCE over network access.
A critical command injection vulnerability in Zoom Node Multimedia Routers (MMRs) used in hybrid meeting environments that can allow arbitrary code execution by meeting participants; described as easy to exploit with high impact (CVSS 9.9).
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