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CVE-2026-53413: remote code execution in Zoom Communications Zoom Clients

An attacker who can participate in or send data to a Zoom meeting can cause a vulnerable Zoom Client to overwrite memory and achieve remote code execution; this is tracked as CVE-2026-53413. Affected Zoom Clients are listed by the vendor (see references); no fixed release is specified in the available facts. Exploitation requires network access to a meeting session and involves user interaction as noted in the vulnerability details.

Published Updated Source: CVE Program, NVD, FIRST EPSS

CVSS 3.1
8.3HIGH
EPSS
0.00494
CWE
CWE-787
KEV DUE DATE
Not listed
PATCH
Not yet

DIRAS TAKE

Urgent: public exploit code exists for this flaw, so prioritize mitigation now; restrict meeting exposure, apply vendor guidance, and prepare to install vendor patches when released.

What is CVE-2026-53413?

An attacker who can participate in or send data to a Zoom meeting can cause a vulnerable Zoom Client to overwrite memory and achieve remote code execution; this is tracked as CVE-2026-53413. Affected Zoom Clients are listed by the vendor (see references); no fixed release is specified in the available facts. Exploitation requires network access to a meeting session and involves user interaction as noted in the vulnerability details. The weakness is classified as CWE-787 (Out-of-bounds Write).

Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

Which versions of Zoom Communications Zoom Clients are affected?

BRANCHAFFECTEDFIXED
Zoom Clientssee references

Is CVE-2026-53413 being exploited?

Public exploit code is available.

How to fix CVE-2026-53413

  1. Restrict meeting participants to known accounts and enable waiting rooms or meeting locks to limit exposure.
  2. Follow Zoom's official mitigation guidance and configuration hardening for clients and meeting settings.
  3. Monitor endpoints and network logs for suspicious activity related to Zoom client connections and annotator features.
  4. Apply vendor updates immediately when Zoom publishes a patch for the affected Clients.

Frequently asked questions

Is CVE-2026-53413 being actively exploited?

Public exploit code is available for CVE-2026-53413 as of 2026-09-29.

Which Zoom Clients versions are affected by CVE-2026-53413?

The vendor's advisory lists the specific Zoom Clients builds and versions affected; see the vendor references for the exact version list.

Is there a patch for CVE-2026-53413?

No fixed release is listed in the available facts; the patchAvailable flag is false and no fixed versions are provided.

Does CVE-2026-53413 require authentication?

Exploitation involves a meeting participant and requires user interaction; the vulnerability is triggered via network access to a meeting session rather than an administrator-only action.

References