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PatchSiren cyber security CVE debrief

CVE-2026-67378 Microsoft CVE debrief

Microsoft SQL Server vulnerability CVE-2026-67378 allows authorized attackers to execute code over a network. Defenders should assess exposure, prioritize remediation, and verify patch application. The vulnerability is an untrusted pointer dereference in SQL Server, which can be exploited by authorized attackers to execute code over a network. SQL Server administrators and security teams should assess exposure, prioritize remediation, and verify patch application to prevent potential exploitation.

Vendor
Microsoft
Product
Microsoft SQL Server 2019 (CU 32)
CVSS
HIGH 8.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-09-08
Original CVE updated
2026-09-16
Advisory published
2026-09-08
Advisory updated
2026-09-16

Who should care

SQL Server administrators, security teams, and IT professionals responsible for patch management and vulnerability remediation should assess exposure, prioritize remediation, and verify patch application. SQL Server administrators and security teams should also monitor for potential exploitation attempts and review compensating controls for exposed systems.

Why it matters

CVE-2026-67378 is a high-severity vulnerability in Microsoft SQL Server that allows authorized attackers to execute code over a network. SQL Server administrators and security teams should assess exposure, prioritize remediation, and verify patch application to prevent potential exploitation.

  • Potential code execution over a network
  • Requires verification of patch application for affected versions
  • Monitoring for potential exploitation attempts is necessary

Technical summary

CVE-2026-67378 is an untrusted pointer dereference vulnerability in Microsoft SQL Server. An authorized attacker can exploit this vulnerability to execute code over a network. The vulnerability affects Microsoft SQL Server and can be exploited by authorized attackers to execute code over a network. Defenders should assess exposure, prioritize remediation, and verify patch application.

Defensive priority

High priority for SQL Server administrators and security teams

Recommended defensive actions

  • Assess SQL Server exposure and prioritize remediation
  • Verify patch application for affected versions
  • Monitor for potential exploitation attempts

Evidence notes

The CVE record and NVD entry provide details on the vulnerability. Vendor advisory and patch information are available. The vulnerability is a high-severity issue in Microsoft SQL Server that allows authorized attackers to execute code over a network. Defenders should assess exposure, prioritize remediation, and verify patch application.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-67378 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-67378

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

  • CVE-2026-67378 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-67378

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

Supplemental references

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.