CVE-2021-34413

Description

All versions of the Zoom Plugin for Microsoft Outlook for MacOS before 5.3.52553.0918 contain a Time-of-check Time-of-use (TOC/TOU) vulnerability during the plugin installation process. This could allow a standard user to write their own malicious application to the plugin directory, allowing the malicious application to execute in a privileged context.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.40%
Vendor Advisory zoom.us
Affected: n/a Zoom Plugin for Microsoft Outlook for MacOS
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2021-34413?
CVE-2021-34413 has been scored as a high severity vulnerability.
How to fix CVE-2021-34413?
To fix CVE-2021-34413, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-34413 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-34413 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-34413?
CVE-2021-34413 affects n/a Zoom Plugin for Microsoft Outlook for MacOS.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.