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Findings

CVE-2026-97831

Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.

Published Oct 13, 2026 · corrected/updated Oct 15, 2026 · Microsoft Windows 10 Version 1607 · evidence confidence high

Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.

Grounded briefings

Catalog interpretations for three audiences. Each brief cites ingested metadata and the original advisories below. They are not independent research and they do not invent exploit steps.

Executive

CVE-2026-97831 is a medium public vulnerability record for Microsoft Windows 10 Version 1607. It is not currently listed in the CISA Known Exploited catalog. Check the linked vendor or CERT advisories for patch status. This summary is a catalog interpretation of the ingested metadata and cites the original advisories below.

System administrator

Identify whether Microsoft Windows 10 Version 1607 is in your estate, then compare installed versions with the affected ranges. Affected packages or ranges on record: microsoft/windows 10 1607; microsoft/windows 10 1809; microsoft/windows 10 21h2; microsoft/windows 10 22h2. Check the linked vendor or CERT advisories for patch status. Prefer the vendor or distribution advisory linked in Sources before changing production systems. This is a catalog interpretation, not a runbook.

Security analyst

Signals on file: CVSS 6.5, EPSS 0.7%. It is not currently listed in the CISA Known Exploited catalog. Weakness classes: CWE-125. Sources contributing to this record: circl, cve_org, epss, nvd. Public exploit references, when present, are outbound links only and are not proof of active exploitation. This is a catalog interpretation of stored metadata.

Exploitation and remediation

  • Exploitation evidence

    Not listed as known exploited in CISA KEV. Not in the CISA KEV catalog.

  • Patch and remediation

    No required-action text is stored yet. Use the vendor or CERT links in Sources for patch availability.

  • Safe detection guidance

    Compare installed versions with the affected ranges below and verify the advisory from the original publisher. This site stores metadata and outbound links only; it does not ship exploit code or proof-of-concept payloads.

Technology hubs

Windows

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.

  1. Oct 13, 2026 · NIST NVD

    Detected

    Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.

  2. Oct 14, 2026 · NIST NVD

    Updated

    Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.

  3. Oct 15, 2026 · CIRCL Vulnerability Lookup

    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
  • vendor Microsoft Windows 10 Version 1607version unspecified
  • vendor Microsoft Windows 10 Version 1809version unspecified
  • vendor Microsoft Windows 10 Version 21H2version unspecified
  • vendor Microsoft Windows 10 Version 22H2version unspecified
  • vendor Microsoft Windows 11 Version 23H2version unspecified
  • vendor Microsoft Windows 11 Version 24H2version unspecified
  • vendor Microsoft Windows 11 Version 25H2version unspecified
  • vendor Microsoft Windows 11 version 23H2version unspecified

Sources

References