CVE-2026-97843
Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.
Published Oct 13, 2026 · updated Oct 14, 2026 · Microsoft Windows
Affected Microsoft products: Windows 11 Version 26H2 for ARM64-based Systems, Windows Server 2025 (Server Core installation).
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Oct 13, 2026 · NIST NVD
Detected
Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.
Oct 14, 2026 · NIST NVD
Updated
Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.
Affected
- cpe microsoft/windows 10 1607version unspecified
- cpe microsoft/windows 10 1809version unspecified
- cpe microsoft/windows 10 21h2version unspecified
- cpe microsoft/windows 10 22h2version unspecified
- microsoft Windows 11 Version 26H2 for ARM64-based Systemsversion unspecified
- microsoft Windows Server 2025 (Server Core installation)version unspecified
Sources
- CVE.orgVulnerability recordCVE-2026-97843
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-97843
30-day exploitation probability 0.7%
first.org - Microsoft Security Update GuideVendor advisoryCVE-2026-97843
Windows 11 Version 26H2 for ARM64-based Systems, Windows Server 2025 (Server Core installation)
msrc.microsoft.com - NIST NVDVulnerability recordCVE-2026-97843
Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.
nvd.nist.gov