CVE-2022-28764

Local meeting-data exposure via retained encrypted database

Published Nov 14, 2022 · Updated Apr 29, 2025

Information exposure in Zoom clients before 5.12.6 allows local users to read prior-meeting data from a local SQL database. The clients retain meeting data after a meeting ends and encrypt the database with an insufficiently secure per-device key. Exploitation requires access to the same local user account; exposed content includes the previous meeting's in-meeting chat.

CVSS severity3.3
Low
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information exposure in Zoom clients before 5.12.6 allows local users to read prior-meeting data from a local SQL database. The clients retain meeting data after a meeting ends and encrypt the database with an insufficiently secure per-device key. Exploitation requires access to the same local user account; exposed content includes the previous meeting's in-meeting chat.

The record

CVE
CVE-2022-28764
Published
Nov 14, 2022
Updated
Apr 29, 2025
Vendor
Zoom Video Communications, Inc.
Product
Zoom Rooms
Classifications
CWE-459, CWE-200, T1005
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 14, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 29, 2025Record 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 <5.12.6

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Zoom Video Communications, Inc. · Zoom Roomsversion=unspecified <5.12.6
Zoom Video Communications, Inc. · Zoom VDI Windows Meeting Clientversion=unspecified <5.12.6
Zoom Video Communications, Inc. · Zoom Client for Meetingsversion=unspecified <5.12.6

Published CVSS scores

3.3Zoom Video Communications, Inc.CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-459Incomplete Cleanup
CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1005Data from Local System

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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