Threat Intelligence / CVE / CVE-2026-53411

CVE-2026-53411 — Zoom Workplace VDI Plugin

CVSS v3.1 7.8 (HIGH) · Priority 3.9/10 · Published 2026-07-16

As of 2026-07-16, CVE-2026-53411 is a HIGH-severity vulnerability in Zoom Workplace VDI Plugin, CVSS v3.1 7.8. Threadlinqs Intelligence links 3 tracked threat campaigns to CVE-2026-53411, most recently “Zoom Windows Apps Critical Unauthenticated Account Takeover (CVE-2026-53412) Plus Three Chained Local Privilege Escalation Flaws”.

Last updated: 2026-07-16

What is CVE-2026-53411?

A time-of-check to time-of-use (TOCTOU) race condition in the installation and uninstallation process of certain Zoom Clients for Windows could allow an authenticated local user to escalate privileges.

The record classifies CVE-2026-53411 under weakness class CWE-20. Its CVSS v3 base vector states that the flaw requires local access to the host, needs low-privilege credentials, needs no user interaction, and has high impact on confidentiality, integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 68 days ago.

Severity and exploitation probability

CVSS v3.1 base score: 7.8 — HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA KEV: Not listed in the CISA Known Exploited Vulnerabilities catalog
Threadlinqs priority: 3.9/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
Published: 2026-07-16

Is CVE-2026-53411 being exploited?

No public exploitation evidence for CVE-2026-53411 is recorded in the sources Threadlinqs tracks — CISA KEV, Exploit-DB, public proof-of-concept repositories and ProjectDiscovery Nuclei — as of 2026-07-16. That is an absence of evidence in those feeds, not a guarantee that the vulnerability is unexploited.

Affected products and versions

Zoom Communications: Zoom Workplace VDI Plugin

How to fix CVE-2026-53411

No vendor patch reference has been recorded for CVE-2026-53411 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

Threat activity tracking CVE-2026-53411

3 tracked threats in the Threadlinqs corpus reference CVE-2026-53411, either in the campaign’s CVE list or as an indicator on the campaign record.

Zoom Windows Apps Critical Unauthenticated Account Takeover (CVE-2026-53412) Plus Three Chained Local Privilege Escalation Flaws — CRITICAL · 2026-07-16
Zoom Patches Critical Windows Client Flaw (CVE-2026-53412, CVSS 9.8) Enabling Unauthenticated Account Takeover — CRITICAL · 2026-07-16
CVE-2026-53412: Unauthenticated Remote Account Takeover in Zoom Desktop Client, VDI Client, and Meeting SDK for Windows — CRITICAL · 2026-07-16

Sources

Enriched from CVE.org, NVD, GitHub Security Advisories. Last verified by Threadlinqs on 2026-07-17. This product uses the NVD API but is not endorsed or certified by the NVD.

Other references

zoom.com

Full detection coverage & IOCs for threats exploiting CVE-2026-53411 are available via the Threadlinqs MCP server (Purple tier). View plans →

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