CVE-2022-22780

Zoom Chat Susceptible to Zip Bombing

MEDIUM

6.5

CVSS Score

Published: February 9, 2022 at 10:05 PM UTC

Updated: June 17, 2026 at 04:29 AM UTC

3 products affected across 2 vendorsMeetingsMeetings ClientZoom Client for Meetings

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Severity

MEDIUM6.5

Exploit prediction

EPSS 2%

Description

The Zoom Client for Meetings chat functionality was susceptible to Zip bombing attacks in the following product versions: Android before version 5.8.6, iOS before version 5.9.0, Linux before version 5.8.6, macOS before version 5.7.3, and Windows before version 5.6.3. This could lead to availability issues on the client host by exhausting system resources.

Affected

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

Meetings · Zoom

95%

v < 5.6.3v < 5.7.3v < 5.8.6v < 5.9.0

Affected range stops below 5.6.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.7.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.8.6, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.9.0, so it looks safe — our inference, not a vendor statement

Meetings Client · Zoom Video Communications

60%

v < 5.7.3v < 5.8.6v < 5.9.0

Affected range stops below 5.7.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.8.6, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.9.0, so it looks safe — our inference, not a vendor statement

Zoom Client for Meetings · Zoom Video Communications

60%

v < 5.6.3

Affected range stops below 5.6.3, 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

https://explore.zoom.us/en/trust/security/security-bulletin

References (1)

x_refsource_MISCx_refsource_CONFIRMVendor Advisory

Source: [email protected]

https://explore.zoom.us/en/trust/security/security-bulletin

CVSS

6.5MEDIUM[email protected]

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: REQUIRED
Scope: UNCHANGED
Confidentiality: NONE
Integrity: NONE
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-400

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