CVE-2025-20236— Cisco Webex App Client-Side Remote Code Execution Vulnerability
Quick assessment
Affected
Cisco Cisco Webex Teams
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 Webex是美国思科（Cisco）公司的一个视频会议和协作产品套件。 Cisco Webex存在安全漏洞，该漏洞源于输入验证不足，可能导致下载任意文件并执行任意命令。
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1189 · Drive-by Compromise
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I. Basic Information for CVE-2025-20236
Vulnerability Information
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Vulnerability Title
Cisco Webex App Client-Side Remote Code Execution Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the custom URL parser of Cisco Webex App could allow an unauthenticated, remote attacker to persuade a user to download arbitrary files, which could allow the attacker to execute arbitrary commands on the host of the targeted user.
This vulnerability is due to insufficient input validation when Cisco Webex App processes a meeting invite link. An attacker could exploit this vulnerability by persuading a user to click a crafted meeting invite link and download arbitrary files. A successful exploit could allow the attacker to execute arbitrary commands with the privileges of the targeted user.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
从非可信控制范围包含功能例程
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Webex 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Webex是美国思科（Cisco）公司的一个视频会议和协作产品套件。 Cisco Webex存在安全漏洞，该漏洞源于输入验证不足，可能导致下载任意文件并执行任意命令。
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 Webex Teams | 44.6 | - |
|
II. Public POCs for CVE-2025-20236
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2025-20236 (1)
Same Patch Batch · Cisco · 2025-04-16 · 3 CVEs total
| CVE-2025-20178 | 6.0 MEDIUM | Cisco Secure Network Analytics Privilege Escalation Vulnerability |
| CVE-2025-20150 | 5.3 MEDIUM | Cisco Nexus Dashboard Username Enumeration Vulnerability |
IV. Related Vulnerabilities
Same product: Cisco Webex Teams
Same vendor: Cisco
-
CVE-2026-76504
Cisco Catalyst SD-WAN Manager System Account Authorization B -
CVE-2026-76426
Cisco ISE REST API SQL Injection Vulnerability -
CVE-2026-20121
CIsco FTD Bypass Access List -
CVE-2026-76431
Cisco Identity Services Engine Arbitrary File Deletion Vulne -
CVE-2026-76427
Cisco ISE XML External Entity Injection Vulnerability
Same weakness: CWE-829
V. Comments for CVE-2025-20236
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