# CVE-2026-53409 — Zoom Rooms

> As of 2026-07-16, CVE-2026-53409 is a HIGH-severity vulnerability in Zoom Rooms, CVSS v3.1 7.8. Threadlinqs Intelligence links 3 tracked threat campaigns to CVE-2026-53409, 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-2026-53409?

Improper Privilege Management in Zoom Rooms for Windows before version 7.1.0 may allow an authenticated user to conduct an escalation of privilege via local access.

The record classifies CVE-2026-53409 under weakness class [CWE-20](https://cwe.mitre.org/data/definitions/20.html). 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-2026-53409 being exploited?

No public exploitation evidence for CVE-2026-53409 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 Rooms

## How to fix CVE-2026-53409

No vendor patch reference has been recorded for CVE-2026-53409 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-2026-53409

3 tracked threats in the Threadlinqs corpus reference CVE-2026-53409, 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](https://intel.threadlinqs.com/threat/TL-2026-1393) — CRITICAL · 2026-07-16
- [Zoom Patches Critical Windows Client Flaw (CVE-2026-53412, CVSS 9.8) Enabling Unauthenticated Account Takeover](https://intel.threadlinqs.com/threat/TL-2026-1405) — CRITICAL · 2026-07-16
- [CVE-2026-53412: Unauthenticated Remote Account Takeover in Zoom Desktop Client, VDI Client, and Meeting SDK for Windows](https://intel.threadlinqs.com/threat/TL-2026-1407) — 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](https://www.zoom.com/en/trust/security-bulletin/zsb-26011)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-53409
Full detection coverage and IOCs for threats exploiting CVE-2026-53409 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp