As detailed in Security Affairs, Zoom has released critical security updates to address a severe vulnerability, identified as CVE-2026-22844, which poses a significant risk of remote code execution.
The command injection vulnerability was discovered by Zoom's Offensive Security team within Zoom Node Multimedia Routers (MMRs) prior to version 5.2.1716.0. This flaw, with a critical CVSS score of 9.9, could allow a meeting participant to execute arbitrary code on the MMR through network access. The vulnerability specifically impacts Node Meeting Connector (MC) MMR and Node Meetings Hybrid (ZMH) MMR modules.
While Zoom is not aware of any active exploitation in the wild, the company strongly advises administrators of affected deployments to update their MMR versions immediately.
Source: Security Affairs
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