Use After Free in Microsoft Windows 10 1607
CVE-2026-69827
Concurrent execution using shared resource with improper synchronization ('race condition') in DNS Server allows an unauthorized attacker to execute code over a network.
Vulnerability class: Race Condition
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (44.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 44.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.005 · change: -0.000
Affected products
- Microsoft Windows 10 1607
- Microsoft Windows 10 1809
- Microsoft Windows 10 Version 1607
- Microsoft Windows 10 Version 1809
- Microsoft Windows Server 2012
- Microsoft Windows Server 2012 — versions r2
- Microsoft Windows Server 2012 R2
- Microsoft Windows Server 2012 R2 (Server Core Installation)
- Microsoft Windows Server 2012 (Server Core Installation)
- Microsoft Windows Server 2016
Weakness classification (CWE)
References
- Windows DNS Server Remote Code Execution Vulnerability (vendor-advisory, Patch, patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-69827?
- CVE-2026-69827 is a high-severity vulnerability in Microsoft Windows 10 1607, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 8.1/10. Published 2026-09-08.
- How severe is CVE-2026-69827?
- High severity. CVSS v3 base score is 8.1 out of 10.