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CVE-2020-3126

3.0 · LOW

vulnerability within the Multimedia Viewer feature of Cisco Webex Meetings could allow an authenticated, remote attacker to bypass security protections.

Published Apr 13, 2020CWE-284EPSS 0.86%

Overview

CVE-2020-3126 is a low-severity vulnerability. It was published on April 13, 2020 and has a CVSS 3.1 base score of 3.0 (LOW).

This vulnerability has a CVSS 3.1 base score of 3.0, rated LOW. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

vulnerability within the Multimedia Viewer feature of Cisco Webex Meetings could allow an authenticated, remote attacker to bypass security protections. The vulnerability is due to missing security warning dialog boxes when a room host views shared multimedia files. An authenticated, remote attacker could exploit this vulnerability by using the host role to share files within the Multimedia sharing feature and convincing a former room host to view that file. A warning dialog normally appears cautioning users before the file is displayed; however, the former host would not see that warning dialog, and any shared multimedia would be rendered within the user's browser. The attacker could leverage this behavior to conduct additional attacks by including malicious files within a targeted room host's browser window.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refquickview.cloudapps.cisco.com/quickview/bug/CSCvs24436Refquickview.cloudapps.cisco.com/quickview/bug/CSCvs24436

How CyberStrike helps

Frequently asked questions

What is CVE-2020-3126?

CVE-2020-3126 is a low-severity vulnerability. It was published on April 13, 2020 and has a CVSS 3.1 base score of 3.0 (LOW).

How severe is CVE-2020-3126?

This vulnerability has a CVSS 3.1 base score of 3.0, rated LOW. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2020-3126?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2020-3126?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2020-3126 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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