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 2021-11-11 23:15:10
Updated 2021-12-16 18:39:29
View at NVD,   CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2021-34420

0.08%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 33 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-34420

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
4.3
MEDIUM AV:N/AC:M/Au:N/C:N/I:P/A:N
8.6
2.9
NIST
7.4
HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N
2.8
4.0
NIST
4.7
MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N
2.8
1.4
Zoom Video Communications, Inc.

CWE ids for CVE-2021-34420

References for CVE-2021-34420

Products affected by CVE-2021-34420

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