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CVE-2026-67383 Microsoft CVE debrief

CVE-2026-67383 is a medium-severity information disclosure vulnerability in SQL Server 2025. An authorized attacker can exploit this vulnerability to disclose sensitive information over a network. SQL Server 2025 administrators and users should assess exposure, review and apply Microsoft patches, and monitor network activity for potential information disclosure attempts. The CVE record and NVD details indicate a need for caution and prompt patching. This vulnerability allows an attacker to disclose information over a network, potentially leading to further exploitation. Administrators should prioritize patching and verify affected versions.

Vendor
Microsoft
Product
SQL Server 2025
CVSS
MEDIUM 6.5
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 2025 administrators and users should assess exposure and apply patches. This includes reviewing Microsoft patches, monitoring network activity for potential information disclosure attempts, and verifying affected versions. Security teams and vulnerability management teams should prioritize patching and ensure that compensating controls are in place for exposed systems.

Why it matters

CVE-2026-67383 is a medium-severity information disclosure vulnerability in SQL Server 2025. SQL Server 2025 administrators and users should assess exposure, review and apply Microsoft patches, and monitor network activity for potential information disclosure attempts. The CVE record and NVD details indicate a need for caution and prompt patching.

  • Potential information disclosure over the network
  • Requires verification of affected versions and exposure
  • Patching priority for SQL Server 2025 instances

Technical summary

CVE-2026-67383 is an information disclosure vulnerability in SQL Server 2025. An authorized attacker can exploit this vulnerability to disclose sensitive information over a network. The vulnerability is considered medium-severity, with a CVSS score of 6.5. Administrators should review and apply Microsoft patches to mitigate this vulnerability. The CVE record and NVD details provide additional technical context for defenders.

Defensive priority

Medium priority for SQL Server 2025 users

Recommended defensive actions

  • Review and apply Microsoft patch for CVE-2026-67383
  • Inventory SQL Server 2025 instances for exposure
  • Monitor network for potential information disclosure attempts

Evidence notes

Official CVE Program and NVD records indicate information disclosure vulnerability in SQL Server 2025. The CVE record was published on 2026-09-08T18:18:21.733Z and has not been modified since then. The NVD details provide additional context on the vulnerability, including its medium severity and potential impact. Defenders should verify affected SQL Server 2025 deployments and review Microsoft patches for remediation.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-67383 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-67383

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

  • CVE-2026-67383 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-67383

    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.