CVE-2026-53414

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Buffer Over-Read in Zoom Client Annotator

Publication date: 2026-08-11

Last updated on: 2026-08-28

Assigner: Zoom Video Communications, Inc.

Description

Missing bounds check in the annotator function of Zoom Clients allows buffer over-read, which may allow a meeting participant to conduct a denial of service on another participant via network access.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-08-11

Last Modified

2026-08-28

Generated

2026-09-01

AI Q&A

2026-08-11

EPSS Evaluated

2026-08-30

NVD

CVE-2026-53414

EUVD

EUVD-2026-56244

Affected Vendors & Products

Vendor	Product	Version / Range
zoom	workplace	to 7.0.6 (exc)
zoom	workplace_vdi_client	to 6.6.16 (exc)
zoom	rooms	to 7.1.0 (exc)
zoom	meeting_sdk	to 7.1.0 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-126	The product reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer.

Attack-Flow Graph

Executive Summary

This vulnerability is a buffer over-read caused by a missing bounds check in the annotator function of Zoom Clients. It allows a meeting participant to exploit network access and cause a denial of service for another participant.

Detection Guidance

Detection involves checking Zoom client versions. For Windows, run: wmic product where "name like 'Zoom%'"

On macOS/Linux, check installed packages: zoom --version or dpkg -l | grep zoom. Compare versions against affected releases.

Impact Analysis

If exploited, this vulnerability could disrupt your Zoom meetings by causing a denial of service, preventing you from participating normally. It requires network access and could be triggered by another meeting participant.

Compliance Impact

This vulnerability may impact compliance with GDPR and HIPAA by enabling denial of service attacks on meeting participants, potentially disrupting data processing or protected health information access. Buffer over-read flaws could lead to unauthorized data exposure or service disruptions, violating confidentiality and availability requirements under these regulations.

Mitigation Strategies

Update Zoom clients immediately. For Workplace, upgrade to 7.1.5 or 7.0.6. For VDI Client, use 7.0.11 or 6.6.16. Rooms and SDK require 7.1.0.

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