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High [CVE-2026-20098] Cisco Meeting Management Arbitrary File Upload Vulnerability

This high-severity Cisco advisory covers CVE-2026-20098 affecting Cisco Meeting Management.

cisco-sa-cmm-file-up-kY47n8kK Published Feb 4, 2026Updated by vendor Feb 4, 2026
Affected products & platforms
CiscoUnclassified
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Summary

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. The malicious files could overwrite system files…

Affected versions
  • Scope: This vulnerability affects Cisco Meeting Management, regardless of device configuration.
  • Release 3.12 and earlier (first fixed: 3.12.1 MR)

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Fixed versions
  • 3.12.1 MR

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • Upgrade to the first fixed release for your train per the Fixed Releases table in this advisory.
  • Release 3.12 and earlier: upgrade to 3.12.1 MR.
Workaround status
  • There are no workarounds that address this vulnerability.

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

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