CVE-2025-20236
"Cisco Webex App URL Parser Remote Command Execution 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.
INFO
Published Date :
April 16, 2025, 5:15 p.m.
Last Modified :
April 17, 2025, 8:22 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
2.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-20236.
| URL | Resource |
|---|---|
| https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-app-client-rce-ufyMMYLC |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-20236 vulnerability anywhere in the article.
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BleepingComputer
Cisco Webex bug lets hackers gain code execution via meeting links
Cisco has released security updates for a high-severity Webex vulnerability that allows unauthenticated attackers to gain client-side remote code execution using malicious meeting invite links. Tracke ... Read more
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security.nl
Lek in Cisco Webex-app maakt client-side remote code execution mogelijk
Een kwetsbaarheid in de Cisco Webex-app maakt client-side remote code execution mogelijk. Daarvoor waarschuwt Cisco, dat een beveiligingsupdate heeft uitgebracht. Het beveiligingslek bevindt zich in h ... Read more
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Cyber Security News
Cisco Webex Vulnerability Allows Code Execution via Weaponized Meeting Links
A critical vulnerability in Cisco Webex App that could allow attackers to execute malicious code on target systems through specially crafted meeting invitation links. The high-severity flaw, tracked a ... Read more
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Daily CyberSecurity
Cisco Patches CVE-2025-20236: Unauthenticated RCE Flaw in Webex App via Malicious Meeting Links
Cisco has issued an important security advisory addressing a high-severity vulnerability in its Webex App that could allow unauthenticated remote code execution (RCE) through malicious meeting invite ... Read more
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Daily CyberSecurity
APT29 Targets European Diplomats with Wine-Themed Phishing
A new wave of targeted phishing attacks aimed at European governments and diplomats is underway, with the threat group APT29 identified as the perpetrator. Check Point Research (CPR) has been closely ... Read more
The following table lists the changes that have been made to the
CVE-2025-20236 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by [email protected]
Apr. 16, 2025
Action Type Old Value New Value Changed 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. 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. -
New CVE Received by [email protected]
Apr. 16, 2025
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Added CWE CWE-829 Added Reference https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-app-client-rce-ufyMMYLC
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-20236 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-20236
weaknesses.