CVE-2022-28755Network attack vector

Code execution via malicious meeting URL

Published Aug 11, 2022 · Updated Sep 17, 2024

Improper URL parsing in desktop clients before 5.11.0 and VDI clients before 5.10.7 allows remote attackers to redirect connections. Zoom has not published the affected parser or validation error; a crafted meeting URL directs the client to an attacker-chosen network address. A user must open the malicious URL, after which follow-on attacks can launch executables from arbitrary paths and execute code.

CVSS severity9.6
Critical
EPSS probability0.82%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper URL parsing in desktop clients before 5.11.0 and VDI clients before 5.10.7 allows remote attackers to redirect connections. Zoom has not published the affected parser or validation error; a crafted meeting URL directs the client to an attacker-chosen network address. A user must open the malicious URL, after which follow-on attacks can launch executables from arbitrary paths and execute code.

The record

CVE
CVE-2022-28755
Published
Aug 11, 2022
Updated
Sep 17, 2024
Vendor
Zoom Video Communications, Inc.
Product
Zoom VDI Windows Meeting Client
Classifications
CWE-20, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 11, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <5.10.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Zoom Video Communications, Inc. · Zoom VDI Windows Meeting Clientversion=unspecified <5.10.7
Zoom Video Communications, Inc. · Zoom Client for Meetingsversion=unspecified <5.11.0

Published CVSS scores

9.6ZoomCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1204.001User Execution: Malicious Link

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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