CVE-2026-20098
HIGHCVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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2Tags
Description
A vulnerability in the Certificate Management feature of Cisco Meeting Management could allow an authenticated, remote attacker to upload arbitrary files, execute arbitrary commands, and elevate privileges to root on an affected system. This vulnerability is due to improper input validation in certain sections of the web-based management interface. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected system. A successful exploit could allow the attacker to upload arbitrary files to the affected system. The malicious files could overwrite system files that are processed by the root system account and allow arbitrary command execution with root privileges. To exploit this vulnerability, the attacker must have valid credentials for a user account with at least the role of video operator.
Analysis
Unauthenticated file upload in Cisco Meeting Management's Certificate Management interface allows authenticated attackers to write arbitrary files and execute commands with root privileges on affected systems. An attacker with valid credentials can exploit improper input validation in the web management interface to overwrite system files processed with elevated privileges, leading to complete system compromise. …
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Remediation
Within 24 hours: Identify all Cisco Meeting Management deployments and document current user access lists; disable Certificate Management feature if operationally feasible. Within 7 days: Implement network segmentation to restrict access to CMM instances, enforce multi-factor authentication for all administrative accounts, and enable enhanced logging on affected systems. …
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