# CVE-2026-69525 — Microsoft Windows 10 Version 1607

> As of 2026-10-01, CVE-2026-69525 is a CRITICAL-severity vulnerability in Microsoft Windows 10 Version 1607, CVSS v3.1 9.8, EPSS 0.9% (60.7th percentile). Threadlinqs Intelligence links 2 tracked threat campaigns to CVE-2026-69525, most recently “September 2026 Microsoft Patch Tuesday — Record 966+ Vulnerabilities with Two Actively Exploited Zero-Days (CVE-2026-81963, CVE-2026-85880) and Multiple Critical Wormable RCEs”.

**Last updated:** 2026-10-01

## What is CVE-2026-69525?

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

The record classifies CVE-2026-69525 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 no user interaction, and has high impact on confidentiality, integrity, availability. 12 affected-product entries are recorded, across 1 vendor, listed below. The identifier was first published 27 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 9.8 — CRITICAL (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C`)
- **EPSS (FIRST):** 0.9% probability of exploitation in the next 30 days, higher than 60.7% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 7.3/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-09-08, last modified 2026-10-01

## Is CVE-2026-69525 being exploited?

No public exploitation evidence for CVE-2026-69525 is recorded in the sources Threadlinqs tracks — CISA KEV, Exploit-DB, public proof-of-concept repositories and ProjectDiscovery Nuclei — as of 2026-10-01. That is an absence of evidence in those feeds, not a guarantee that the vulnerability is unexploited.

## 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 23H2, Windows 11 Version 23H2, 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

## How to fix CVE-2026-69525

The record marks a vendor fix as available for CVE-2026-69525. Patch reference: [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69525](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69525). Vendor advisory: [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69525](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69525). 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-2026-69525

2 tracked threats in the Threadlinqs corpus reference CVE-2026-69525, either in the campaign’s CVE list or as an indicator on the campaign record.

- [September 2026 Microsoft Patch Tuesday — Record 966+ Vulnerabilities with Two Actively Exploited Zero-Days (CVE-2026-81963, CVE-2026-85880) and Multiple Critical Wormable RCEs](https://intel.threadlinqs.com/threat/TL-2026-2398) — CRITICAL · 2026-09-08
- [Microsoft September 2026 Patch Tuesday — 999 CVEs, 3 actively exploited zero-days (CVE-2026-85880, CVE-2026-81963, CVE-2026-85046)](https://intel.threadlinqs.com/threat/TL-2026-2407) — CRITICAL · 2026-09-08

## Sources

Enriched from CVE.org, NVD, FIRST EPSS, GitHub Security Advisories. Last verified by Threadlinqs on 2026-10-04. 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-2026-69525)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-69525
Full detection coverage and IOCs for threats exploiting CVE-2026-69525 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp