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CVE-2026-68780 Microsoft CVE debrief

An out-of-bounds read vulnerability in Microsoft SQL Server could allow an authorized attacker to disclose information over a network. This CVE was published on 2026-09-08T18:18:25.587Z and was last modified on 2026-09-15T19:56:17.160Z. The NVD entry is currently Analyzed. The vulnerability affects SQL Server 2017, 2019, 2022, and 2025. Defenders responsible for SQL Server instances, especially those exposed to the network, should assess their exposure and prioritize patching. The CVSS score is 6.5, and the severity is MEDIUM. Microsoft has provided a vendor advisory and patch for the vulnerability.

Vendor
Microsoft
Product
Microsoft SQL Server 2017 (CU 31)
CVSS
MEDIUM 6.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-09-08
Original CVE updated
2026-09-15
Advisory published
2026-09-08
Advisory updated
2026-09-15

Who should care

Defenders responsible for SQL Server instances, especially those exposed to the network, should assess their exposure and prioritize patching.

Why it matters

CVE-2026-68780 is a MEDIUM-severity vulnerability in Microsoft SQL Server that could allow an authorized attacker to disclose information over a network. Defenders should prioritize verifying and patching affected instances, especially those exposed to the network.

  • Verify and patch affected SQL Server instances to prevent information disclosure
  • Conduct thorough inventory and monitoring to detect potential exploitation attempts

Technical summary

The vulnerability is an out-of-bounds read in Microsoft SQL Server, which could allow an authorized attacker to disclose information over a network. The CVSS score is 6.5, and the severity is MEDIUM. Affected versions include SQL Server 2017, 2019, 2022, and 2025.

Defensive priority

Defenders should prioritize verifying and patching affected SQL Server instances, especially those exposed to the network.

Recommended defensive actions

  • Verify and apply the Microsoft patch for CVE-2026-68780
  • Conduct a thorough inventory of SQL Server instances and their exposure to the network
  • Monitor SQL Server logs for potential exploitation attempts

Evidence notes

The CVE and NVD records provide details on the vulnerability, including its CVSS score of 6.5 and severity of MEDIUM. Microsoft has provided a vendor advisory and patch for the vulnerability.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-68780 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-68780

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

  • CVE-2026-68780 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-68780

    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.