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PatchSiren cyber security CVE debrief

CVE-2026-70124 Microsoft CVE debrief

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-09-08T17:13:11.407Z and has not been modified since then. The NVD entry is currently Medium. This medium-severity vulnerability in Windows DHCP Server could allow information disclosure over a network. Defenders managing Windows DHCP Server installations, especially in environments with sensitive network information, should assess exposure and apply patches. The vulnerability is an out-of-bounds read issue that allows unauthorized attackers to disclose information. Affected versions include Windows 10, Windows Server 2012, and later versions.

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 managing Windows DHCP Server installations, especially in environments with sensitive network information, should assess exposure and apply patches.

Why it matters

CVE-2026-70124 is a medium-severity vulnerability in Windows DHCP Server that could allow information disclosure. Defenders should verify exposure, apply patches, and monitor network access.

  • Potential information disclosure over the network
  • Requires verification of exposure and patch application
  • Network access restrictions may be necessary until patched
  • Monitoring for unauthorized access attempts is recommended

Technical summary

An out-of-bounds read vulnerability in Windows DHCP Server allows unauthorized attackers to disclose information over a network. Affected versions include Windows 10, Windows Server 2012, and later versions. The vulnerability could allow information disclosure, and defenders should verify exposure and apply patches from Microsoft. The CVE record and source item provide details on the vulnerability but do not offer specific exploitation or impact evidence.

Defensive priority

Defenders should prioritize verifying exposure and applying patches for Windows DHCP Server installations, especially in environments where unauthorized network access is a concern.

Recommended defensive actions

  • Verify Windows DHCP Server installations for exposure
  • Apply patches from Microsoft
  • Monitor network access and DHCP Server configurations

Evidence notes

The CVE record and source item provide details on the vulnerability but do not offer specific exploitation or impact evidence. Microsoft's advisory is referenced for patch information.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-70124 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-70124

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

  • CVE-2026-70124 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-70124

    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/2026/70xxx/CVE-2026-70124.json

    cve_program_cvelist_v5

  • Source reference

    Unverified legacy reference

    URL: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70124

    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.