High severity · published Sep 27, 2021
CVE-2021-34413
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…
7.5
CVSS
0.6%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 48% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ZP
Zoom Plugin For Microsoft Outlook · Zoom
before 5.3.52553.0918 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-34413
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-34413
Vendor Advisory
https://explore.zoom.us/en/trust/security/security-bulletin/
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