# CVE-2026-50474 — Microsoft Windows 10 Version 1607

> As of 2026-10-08, CVE-2026-50474 is a HIGH-severity vulnerability in Microsoft Windows 10 Version 1607, CVSS v3.1 8.8, EPSS 0.8% (55.9th percentile). Threadlinqs Intelligence links 3 tracked threat campaigns to CVE-2026-50474, most recently “Microsoft July 2026 Patch Tuesday: 570 Flaws Fixed, 3 Zero-Days Including AD FS and SharePoint Privilege Escalation”.

**Last updated:** 2026-10-08

## What is CVE-2026-50474?

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

The record classifies CVE-2026-50474 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. 12 affected-product entries are recorded, across 1 vendor, listed below. The identifier was first published 106 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 8.8 — HIGH (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C`)
- **EPSS (FIRST):** 0.8% probability of exploitation in the next 30 days, higher than 55.9% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 6.6/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-07-14, last modified 2026-10-08

## Is CVE-2026-50474 being exploited?

It currently carries a trending score of 37 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [Microsoft](https://intel.threadlinqs.com/vendors/microsoft): Windows 10 Version 1607, Windows 10 Version 1809, Windows 10 Version 21H2, Windows 10 Version 22H2, Windows 11 Version 24H2, Windows 11 Version 25H2, Windows 11 version 26H1, Windows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation), Windows Server 2016

## How to fix CVE-2026-50474

The record marks a vendor fix as available for CVE-2026-50474. Patch reference: [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50474](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50474). Vendor advisory: [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50474](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50474). Apply the vendor fix referenced above to every affected product listed in this record, then confirm the running version against the vendor advisory.

## Threat activity tracking CVE-2026-50474

3 tracked threats in the Threadlinqs corpus reference CVE-2026-50474, either in the campaign’s CVE list or as an indicator on the campaign record.

- [Microsoft July 2026 Patch Tuesday: 570 Flaws Fixed, 3 Zero-Days Including AD FS and SharePoint Privilege Escalation](https://intel.threadlinqs.com/threat/TL-2026-1324) — CRITICAL · 2026-07-14
- [Microsoft July 2026 Patch Tuesday: 570 Vulnerabilities Fixed, Including 2 Actively Exploited Zero-Days (CVE-2026-56164, CVE-2026-56155)](https://intel.threadlinqs.com/threat/TL-2026-1325) — CRITICAL · 2026-07-14
- [Microsoft July 2026 Patch Tuesday: 569 CVEs, Two Actively Exploited Zero-Days (CVE-2026-56155 AD FS EoP, CVE-2026-56164 SharePoint EoP)](https://intel.threadlinqs.com/threat/TL-2026-1327) — CRITICAL · 2026-07-14

## Sources

Enriched from CVE.org, NVD, FIRST EPSS, GitHub Security Advisories. Last verified by Threadlinqs on 2026-10-10. This product uses the NVD API but is not endorsed or certified by the NVD.

**Vendor advisory and patch**

- [msrc.microsoft.com — vendor advisory](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50474)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-50474
Full detection coverage and IOCs for threats exploiting CVE-2026-50474 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp