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CVE-2026-50468 Microsoft CVE debrief

A buffer over-read vulnerability exists in SQL Server 2025, which allows an authorized attacker to disclose information over a network. The vulnerability has a CVSS score of 6.5 and a severity of MEDIUM. This issue arises from a buffer over-read in SQL Server, potentially exposing sensitive information. Security teams and administrators responsible for SQL Server 2025 should be aware of this vulnerability and take necessary actions to mitigate it. The affected product is SQL Server 2025, with specific CPE criteria cpe:2.3:a:microsoft:sql_server_2025:*:*:*:*:*:*:x64:*.

Vendor
Microsoft
Product
SQL Server 2025
CVSS
MEDIUM 6.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-14
Original CVE updated
2026-07-22
Advisory published
2026-07-14
Advisory updated
2026-07-22

Who should care

Security teams and administrators responsible for SQL Server 2025 deployments should be aware of this vulnerability and take necessary actions to mitigate it. They should review their environments for affected deployments, plan for vendor-supported updates or mitigations, and implement compensating controls if necessary.

Technical summary

The vulnerability is caused by a buffer over-read in SQL Server 2025, which allows an authorized attacker to disclose information over a network. The vulnerability has been assigned a CVSS score of 6.5 and a severity of MEDIUM. The affected product is SQL Server 2025, with CPE criteria cpe:2.3:a:microsoft:sql_server_2025:*:*:*:*:*:*:x64:*. This issue may expose sensitive information if exploited.

Defensive priority

Medium priority should be given to patching or mitigating this vulnerability, as it allows an authorized attacker to disclose information over a network. Security teams should focus on verifying SQL Server 2025 deployments and applying patches or mitigations as soon as possible.

Recommended defensive actions

  • Apply the patch provided by Microsoft
  • Review and update SQL Server 2025 configurations
  • Monitor for suspicious activity
  • Implement compensating controls
  • Inventory and track SQL Server 2025 instances

Evidence notes

The CVE record was published on 2026-07-14T18:17:52.237Z and last modified on 2026-07-22T17:30:04.960Z. The NVD entry is currently Analyzed. This vulnerability affects SQL Server 2025 with CPE criteria cpe:2.3:a:microsoft:sql_server_2025:*:*:*:*:*:*:x64:*. The buffer over-read allows an authorized attacker to disclose information over a network, with a CVSS score of 6.5 and a severity of MEDIUM. Security teams should verify their SQL Server 2025 deployments and review vendor advisories for mitigation strategies.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-50468 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-50468

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

  • CVE-2026-50468 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-50468

    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.