Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2021-34420

The Zoom Client for Meetings for Windows installer before version 5.5.4 does not properly verify the signature of files with .msi, .ps1, and .bat extensions. This could lead to a malicious actor installing malicious software on a customer’s computer.

Published

2021-11-11T23:15:09.827

Last Modified

2024-11-21T06:10:21.993

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 4.7 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:N/I:P/A:N

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: PARTIAL
Availability Impact: NONE

Exploitability Score

8.6

Impact Score

2.9

Weaknesses

Type: Primary
CWE-347

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	zoom	zoom_client_for_meetings	< 5.4.4	Yes

References

https://explore.zoom.us/en/trust/security/security-bulletin Vendor Advisory ([email protected])
https://medium.com/manomano-tech/a-red-team-operation-leveraging-a-zero-day-vulnerability-in-zoom-80f57fb0822e Third Party Advisory ([email protected])
https://explore.zoom.us/en/trust/security/security-bulletin Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://medium.com/manomano-tech/a-red-team-operation-leveraging-a-zero-day-vulnerability-in-zoom-80f57fb0822e Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)