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CVE-2026-20098— Cisco Meeting Management Arbitrary File Upload Vulnerability

Quick assessment

Affected
Cisco Cisco Meeting Management
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Cisco Meeting Management（CMM）是美国思科（Cisco）公司的一个 Cisco 本地视频会议平台 Cisco Meeting Server 的管理工具。 Cisco Meeting Management存在代码问题漏洞，该漏洞源于基于Web的管理界面中某些部分输入验证不当，可能导致上传任意文件、执行任意命令和权限提升至root。

CVSS 8.8 · High EPSS 0.39% · P31
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I. Basic Information for CVE-2026-20098

Vulnerability Information
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Vulnerability Title
Cisco Meeting Management Arbitrary File Upload Vulnerability
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
危险类型文件的不加限制上传
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Meeting Management 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Meeting Management（CMM）是美国思科（Cisco）公司的一个 Cisco 本地视频会议平台 Cisco Meeting Server 的管理工具。 Cisco Meeting Management存在代码问题漏洞，该漏洞源于基于Web的管理界面中某些部分输入验证不当，可能导致上传任意文件、执行任意命令和权限提升至root。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Cisco Cisco Meeting Management CMM3.4.0 -

II. Public POCs for CVE-2026-20098

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III. Intelligence Information for CVE-2026-20098

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Same Patch Batch · Cisco · 2026-02-04 · 5 CVEs total

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CVE-2026-20056 4.0 MEDIUM Cisco Secure Web Appliance TBD Bypass Vulnerability

IV. Related Vulnerabilities

Same product: Cisco Meeting Management
Same vendor: Cisco
Same weakness: CWE-434

V. Comments for CVE-2026-20098

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