CVE-2022-22780Network attack vector

Host resource exhaustion via chat zip bomb

Published Feb 9, 2022 · Updated Sep 16, 2024

Uncontrolled resource consumption in Zoom Client for Meetings allows remote attackers to exhaust host resources through crafted chat content. The chat functionality processes a highly compressed payload whose expansion consumes unbounded client-host resources; Zoom has not published a finer-grained code locus. A recipient must interact with the crafted content, and the reported consequence is client-host availability loss without confidentiality or integrity impact.

CVSS severity4.7
Medium
EPSS probability1.70%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uncontrolled resource consumption in Zoom Client for Meetings allows remote attackers to exhaust host resources through crafted chat content. The chat functionality processes a highly compressed payload whose expansion consumes unbounded client-host resources; Zoom has not published a finer-grained code locus. A recipient must interact with the crafted content, and the reported consequence is client-host availability loss without confidentiality or integrity impact.

The record

CVE
CVE-2022-22780
Published
Feb 9, 2022
Updated
Sep 16, 2024
Vendor
Zoom Video Communications, Inc.
Product
Zoom Client for Meetings for Linux
Classifications
CWE-400, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 9, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 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 <5.8.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Zoom Video Communications, Inc. · Zoom Client for Meetings for Linuxversion=unspecified <5.8.6
Zoom Video Communications, Inc. · Zoom Client for Meetings for Androidversion=unspecified <5.8.6
Zoom Video Communications, Inc. · Zoom Client for Meetings for Windowsversion=unspecified <5.6.3
Zoom Video Communications, Inc. · Zoom Client for Meetings for MacOSversion=unspecified <5.7.3
Zoom Video Communications, Inc. · Zoom Client for Meetings for iOSversion=unspecified <5.9.0

Published CVSS scores

4.7Zoom Video Communications, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:L
7.8NIST National Vulnerability DatabaseAV:N/AC:L/Au:N/C:N/I:N/A:C
6.5NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/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-400Uncontrolled Resource Consumption
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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