CVE-2023-22880: Information Disclosure in Zoom for Windows Clients

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-03-16 · updated 2026-06-17
Weakness: CWE-200

Description

Zoom for Windows clients before version 5.13.3, Zoom Rooms for Windows clients before version 5.13.5 and Zoom VDI for Windows clients before 5.13.1 contain an information disclosure vulnerability. A recent update to the Microsoft Edge WebView2 runtime used by the affected Zoom clients, transmitted text to Microsoft’s online Spellcheck service instead of the local Windows Spellcheck. Updating Zoom remediates this vulnerability by disabling the feature. Updating Microsoft Edge WebView2 Runtime to at least version 109.0.1481.0 and restarting Zoom remediates this vulnerability by updating Microsoft’s telemetry behavior.

Affected products

Zoom Video Communications, Inc. Zoom Rooms for Windows: before 5.13.3 — fixed in 5.13.3
Zoom Virtual Desktop Infrastructure: before 5.13.1 — fixed in 5.13.1
Zoom Video Communications, Inc. Zoom Desktop Client for Windows: before 5.13.3 — fixed in 5.13.3

How to fix

Upgrade to a fixed version: Zoom Video Communications, Inc. Zoom Rooms for Windows 5.13.3; Zoom Virtual Desktop Infrastructure 5.13.1; Zoom Video Communications, Inc. Zoom Desktop Client for Windows 5.13.3. Check the vendor advisory for mitigations.

References

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