CVE-2021-34413
Last modified
CVE-2021-34413 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 0.57% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Zoom | Zoom Plugin For Microsoft Outlook | < 5.3.52553.0918 |
References
- https://explore.zoom.us/en/trust/security/security-bulletin/Vendor Advisory
- https://explore.zoom.us/en/trust/security/security-bulletin/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-34413?
How severe is CVE-2021-34413?
How do I fix CVE-2021-34413?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2021
- CVE-2021-34408The Zoom Client for Meetings for Windows in all versions bef…7.8
- CVE-2021-34409It was discovered that the installation packages of the Zoom…7.8
- CVE-2021-3441A potential security vulnerability has been identified for t…4.8
- CVE-2021-34410A user-writable application bundle unpacked during the insta…7.8
- CVE-2021-34411During the installation process forZoom Rooms for Conference…7.8
- CVE-2021-34412During the installation process for all versions of the Zoom…7.8
- CVE-2021-34414The network proxy page on the web portal for the Zoom on-pre…7.2
- CVE-2021-34415The Zone Controller service in the Zoom On-Premise Meeting C…7.5
- CVE-2021-34416The network address administrative settings web portal for t…9.8
- CVE-2021-34417The network proxy page on the web portal for the Zoom On-Pre…7.2
- CVE-2021-34418The login routine of the web console in the Zoom On-Premise …5.3
- CVE-2021-34419In the Zoom Client for Meetings for Ubuntu Linux before vers…5.3
Are you affected by CVE-2021-34413?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST
