# CVE-2026-50695 — Microsoft Windows 10 Version 1607

> As of 2026-10-08, CVE-2026-50695 is a HIGH-severity vulnerability in Microsoft Windows 10 Version 1607, CVSS v3.1 7.5, EPSS 1.1% (66.5th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2026-50695, most recently “CVE-2026-56155: Microsoft AD FS Elevation-of-Privilege Vulnerability Actively Exploited”.

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

## What is CVE-2026-50695?

Stack-based buffer overflow in Active Directory Federation Services allows an unauthorized attacker to deny service over a network.

The record classifies CVE-2026-50695 under weakness class [CWE-121](https://intel.threadlinqs.com/cwe/CWE-121). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction, and has high impact on 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:** 7.5 — HIGH (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C`)
- **EPSS (FIRST):** 1.1% probability of exploitation in the next 30 days, higher than 66.5% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 6.4/10 — 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-2026-50695 being exploited?

It currently carries a trending score of 30 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-2026-50695

No vendor patch reference has been recorded for CVE-2026-50695 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-2026-50695

1 tracked threat in the Threadlinqs corpus references CVE-2026-50695, either in the campaign’s CVE list or as an indicator on the campaign record.

- [CVE-2026-56155: Microsoft AD FS Elevation-of-Privilege Vulnerability Actively Exploited](https://intel.threadlinqs.com/threat/TL-2026-1349) — HIGH · 2026-07-15

## 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-2026-50695)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-50695
Full detection coverage and IOCs for threats exploiting CVE-2026-50695 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp