# CVE-2026-47654 — Microsoft Windows Server 2016

> As of 2026-09-24, CVE-2026-47654 is a HIGH-severity vulnerability in Microsoft Windows Server 2016, CVSS v3.1 7.5, EPSS 0.6% (47.5th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2026-47654, most recently “Microsoft June 2026 Patch Tuesday — 198+ CVEs Including CVE-2026-49160 (HTTP.sys 'HTTP/2 Bomb' DoS), CVE-2026-50507 (BitLocker 'YellowKey' Bypass) and CVE-2026-45586 (Collaborative Translation Framework EoP)”.

**Last updated:** 2026-09-24

## What is CVE-2026-47654?

Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.

The record classifies CVE-2026-47654 under weakness class [CWE-416](https://intel.threadlinqs.com/cwe/CWE-416). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs a user to take an action first, and has high impact on confidentiality, integrity, availability. 7 affected-product entries are recorded, across 1 vendor, listed below. The identifier was first published 141 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 7.5 — HIGH (`CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:T/RC:C`)
- **EPSS (FIRST):** 0.6% probability of exploitation in the next 30 days, higher than 47.5% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 5.7/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-06-09, last modified 2026-09-24

## Is CVE-2026-47654 being exploited?

It currently carries a trending score of 17 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [Microsoft](https://intel.threadlinqs.com/vendors/microsoft): Windows Server 2016, Windows Server 2016 (Server Core installation), Windows Server 2019, Windows Server 2019 (Server Core installation), Windows Server 2022, Windows Server 2025, Windows Server 2025 (Server Core installation)

## How to fix CVE-2026-47654

No vendor patch reference has been recorded for CVE-2026-47654 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-2026-47654

1 tracked threat in the Threadlinqs corpus references CVE-2026-47654, either in the campaign’s CVE list or as an indicator on the campaign record.

- [Microsoft June 2026 Patch Tuesday — 198+ CVEs Including CVE-2026-49160 (HTTP.sys 'HTTP/2 Bomb' DoS), CVE-2026-50507 (BitLocker 'YellowKey' Bypass) and CVE-2026-45586 (Collaborative Translation Framework EoP)](https://intel.threadlinqs.com/threat/TL-2026-0732) — HIGH · 2026-06-09

## Sources

Enriched from CVE.org, FIRST EPSS. Last verified by Threadlinqs on 2026-10-10.

**Vendor advisory and patch**

- [msrc.microsoft.com — vendor advisory](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47654)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-47654
Full detection coverage and IOCs for threats exploiting CVE-2026-47654 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp