What’s Vulnerable › Vulnerabilities

CVE-2019-1689: Cisco Webex Teams for iOS Arbitrary File Upload Vulnerability

• Severity: high (CVSS 7.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-02-25 · updated 2026-06-17
• Weakness: CWE-20

Description

A vulnerability in the client application for iOS of Cisco Webex Teams could allow an authenticated, remote attacker to upload arbitrary files within the scope of the iOS application. The vulnerability is due to improper input validation in the client application. An attacker could exploit this vulnerability by sending a malicious file to a targeted user and persuading the user to manually open it. An exploit could allow the attacker to overwrite sensitive application files and eventually cause a denial of service (DoS) condition by foreclosing future access to the system to the targeted user. This vulnerability is fixed in version 3.13.26920.

Affected products

• Cisco Webex Teams: before 3.13.26920 — fixed in 3.13.26920

How to fix

Upgrade to a fixed version: Cisco Webex Teams 3.13.26920. Check the vendor advisory for mitigations.

References

• http://www.securityfocus.com/bid/107101
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190220-webx-ios-file
• http://www.securityfocus.com/bid/107101
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190220-webx-ios-file

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