Zoom Clients - Use After Free

Answer in brief

CVE-2026-53415 records a High severity (CVSS 8.3) vulnerability in Zoom Clients - Use After Free. The current sources do not mark it as known exploited. The current feed maps Zoom Communications/Zoom Clients (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 11, 2026Updated Aug 28, 2026Source checked Sep 26, 2026First seen by HOL Aug 11, 2026Material review Aug 28, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 8.3
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

CVSS is 8.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Zoom Communications/Zoom Clients (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Zoom Communications/Zoom Clientsgeneric	see references	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Zoom Communications/Zoom Clients.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Aug 11, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 28, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 11, 2026

Sources and claim methodology

Source referencezoom.com

Upstream source description

Use after Free in the annotator function of Zoom Clients may allow a meeting participant to achieve remote code execution of another participant via network access.

Quoted source text, attributed separately from HOL analysis.