CVE-2021-34425

Server Side Request Forgery in Zoom Client for Meetings chat

Description

The Zoom Client for Meetings before version 5.7.3 (for Android, iOS, Linux, macOS, and Windows) contain a server side request forgery vulnerability in the chat\'s "link preview" functionality. In versions prior to 5.7.3, if a user were to enable the chat\'s "link preview" feature, a malicious actor could trick the user into potentially sending arbitrary HTTP GET requests to URLs that the actor cannot reach directly.

Category

4.7
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.34%
Vendor Advisory zoom.us
Affected: Zoom Video Communications Inc Zoom Client for Meetings for Android
Affected: Zoom Video Communications Inc Zoom Client for Meetings for iOS
Affected: Zoom Video Communications Inc Zoom Client for Meetings for Linux
Affected: Zoom Video Communications Inc Zoom Client for Meetings for macOS
Affected: Zoom Video Communications Inc Zoom Client for Meetings for Windows
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2021-34425?
CVE-2021-34425 has been scored as a medium severity vulnerability.
How to fix CVE-2021-34425?
To fix CVE-2021-34425, 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-2021-34425 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-34425 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-2021-34425?
CVE-2021-34425 affects Zoom Video Communications Inc Zoom Client for Meetings for Android, Zoom Video Communications Inc Zoom Client for Meetings for iOS, Zoom Video Communications Inc Zoom Client for Meetings for Linux, Zoom Video Communications Inc Zoom Client for Meetings for macOS, Zoom Video Communications Inc Zoom Client for Meetings for Windows.
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.