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CVE-2026-69929 Microsoft CVE debrief

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-09-08T17:13:10.151Z and has not been modified since then. The NVD entry is currently Medium. This Windows DHCP Server Information Disclosure Vulnerability allows unauthorized attackers to disclose information over a network due to an out-of-bounds read. Defenders responsible for Windows DHCP Server installations, particularly those using affected versions like Windows 10 Version 1607, Windows 10 Version 1809, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016, Windows Server 2019, Windows Server 2022, and Windows Server 2025, should assess exposure and prioritize  

Vendor
Microsoft
Product
Windows 10 Version 1607
CVSS
MEDIUM 5.9
CISA KEV
Not listed in stored evidence
Original CVE published
2026-09-08
Original CVE updated
2026-10-08
Advisory published
2026-09-08
Advisory updated
2026-10-08

Who should care

Defenders responsible for Windows DHCP Server installations, particularly those using affected versions, should assess exposure and prioritize patching to prevent potential information disclosure.

Why it matters

The Windows DHCP Server Information Disclosure Vulnerability allows unauthorized attackers to disclose information over a network. Defenders responsible for Windows DHCP Server installations, particularly those using affected versions, should assess exposure and prioritize patching to prevent potential information disclosure.

  • Assess exposure of Windows DHCP Server installations to prioritize patching
  • Monitor for potential information disclosure attempts to detect possible exploitation
  • Verify affected versions and apply patches to prevent information disclosure

Technical summary

The Windows DHCP Server Information Disclosure Vulnerability allows an unauthorized attacker to disclose information over a network due to an out-of-bounds read in Windows DHCP Server. Affected versions include Windows 10 Version 1607, Windows 10 Version 1809, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016, Windows Server 2019, Windows Server 2022, and Windows Server 2025.

Defensive priority

Assess exposure of Windows DHCP Server installations, prioritize patching for affected versions, and monitor for potential information disclosure attempts.

Recommended defensive actions

  • Inventory and assess exposure of Windows DHCP Server installations
  • Prioritize patching for affected versions
  • Monitor for potential information disclosure attempts

Evidence notes

The CVE record and source item provide details on the Windows DHCP Server Information Disclosure Vulnerability, including affected versions and a reference to the vendor advisory.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-69929 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-69929

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-69929 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-69929

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • Windows DHCP Server Information Disclosure Vulnerability

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/69xxx/CVE-2026-69929.json

    cve_program_cvelist_v5

  • Source reference

    Unverified legacy reference

    URL: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69929

    Supplemental source - vendor-advisory, patch

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.