CVE-2022-22781Network attack vector

Client downgrade via unchecked update package version

Published Apr 28, 2022 · Updated Sep 16, 2024

Improper update validation in Zoom Client for Meetings for macOS before 5.9.6 allows remote attackers to install an older package. The macOS updater fails to compare the incoming package version with the installed client version before accepting the update. Exploitation requires an unsuspecting user to participate in the update process and leaves the client downgraded to a less secure release.

CVSS severity7.5
High
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper update validation in Zoom Client for Meetings for macOS before 5.9.6 allows remote attackers to install an older package. The macOS updater fails to compare the incoming package version with the installed client version before accepting the update. Exploitation requires an unsuspecting user to participate in the update process and leaves the client downgraded to a less secure release.

The record

CVE
CVE-2022-22781
Published
Apr 28, 2022
Updated
Sep 16, 2024
Vendor
Zoom Video Communications, Inc.
Product
Zoom Client for Meetings for MacOS
Classifications
CWE-354, T1204
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 28, 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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=unspecified <5.9.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Zoom Video Communications, Inc. · Zoom Client for Meetings for MacOSversion=unspecified <5.9.6

Published CVSS scores

5.0NIST National Vulnerability DatabaseAV:N/AC:L/Au:N/C:N/I:P/A:N
7.5NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
7.5Zoom Video Communications, Inc.CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/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-354Improper Validation of Integrity Check Value
T1204User Execution

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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