CVE-2025-30671Network attack vector

Authenticated client crash via null pointer dereference

Published Apr 8, 2025 · Updated Apr 8, 2025

Null pointer dereference in Zoom Workplace Apps for Windows allows remote authenticated users to crash affected clients over a network. Zoom has not disclosed the affected component, input, or code path that dereferences the null pointer. Exploitation requires an authenticated account and network access, and the documented consequence is loss of application availability.

CVSS severity6.5
Medium
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Null pointer dereference in Zoom Workplace Apps for Windows allows remote authenticated users to crash affected clients over a network. Zoom has not disclosed the affected component, input, or code path that dereferences the null pointer. Exploitation requires an authenticated account and network access, and the documented consequence is loss of application availability.

The record

CVE
CVE-2025-30671
Published
Apr 8, 2025
Updated
Apr 8, 2025
Vendor
Zoom Video Communications, Inc.
Product
Zoom Workplace Apps
Classifications
CWE-476, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 8, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 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=See references.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Zoom Video Communications, Inc. · Zoom Workplace Appsversion=See references.

Published CVSS scores

6.5ZoomCVSS:3.1/AV:N/AC:L/PR:L/UI:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499.004Application or System Exploitation

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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