Cisco has released a security advisory to address a high severity vulnerability affecting Webex App, regardless of configuration or operating system.
Cisco Webex is a web conferencing software solution. CVE-2025-20236 is an ‘insufficient input validation’ vulnerability with a CVSSv3 score of 8.8. If exploited, a remote, unauthenticated attacker could achieve remote code execution (RCE) by persuading the end user to click on a malicious meeting link. Affected organisations are encouraged to review Cisco Security Advisory cisco-sa-webex-app-client-rce-ufyMMYLC and apply the relevant updates as soon as practicable.
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Source: NHS Digital
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