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CVE-2022-22787

Insufficient hostname validation during Clusterswitch message in Zoom Client for Meetings

HIGH
7.5
CVSS Score
Published: May 18, 2022 at 04:03 PM UTC
Updated: June 17, 2026 at 04:29 AM UTC
4 products affected across 2 vendorsMeetingsMeetings ClientMeetings

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Severity
HIGH7.5
Exploit prediction
EPSS 4%

Description

The Zoom Client for Meetings (for Android, iOS, Linux, macOS, and Windows) before version 5.10.0 fails to properly validate the hostname during a server switch request. This issue could be used in a more sophisticated attack to trick an unsuspecting users client to connect to a malicious server when attempting to use Zoom services.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Meetings· Zoom
95%
v < 5.10.0
Affected range stops below 5.10.0, so it looks safe — our inference, not a vendor statement
Meetings· Zoom Video Communications
60%
v < 5.10.0
Affected range stops below 5.10.0, so it looks safe — our inference, not a vendor statement
Meetings Client· Zoom Video Communications
60%
v < 5.10.0
Affected range stops below 5.10.0, so it looks safe — our inference, not a vendor statement
Zoom Client for Meetings· Zoom Video Communications
60%
v < 5.10.0
Affected range stops below 5.10.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

x_refsource_MISCThird Party AdvisoryVDB Entry
Source: [email protected]
http://packetstormsecurity.com/files/167238/Zoom-XMPP-Stanza-Smuggling-Remote-Code-Execution.html
x_refsource_MISCx_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://explore.zoom.us/en/trust/security/security-bulletin

CVSS

7.5HIGH[email protected]
Attack Vector
NETWORK
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-295

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