CVE-2026-85919

7.0High

Published 13 Oct 2026 · NVD status: Awaiting Analysis · AI triage by gemini-3.8-flash

7.0High

Attack vector: Local
Complexity: High
Privileges needed: Low
User interaction: None
Impact: Full C/I/A compromise
Weakness: CWE-122

Impact

An authenticated local user can escalate privileges to execute code in the context of the SQL Server service account. They must already have local system access and valid credentials to reach the SQL Server instance.

Root cause

A heap-based buffer overflow flaw exists within the SQL Server engine.

Affected systems

Versions not listed — check the vendor advisory.

CVSS v3.1 · CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Fix & remediation

Install the latest security update from the vendor advisory once identified; until then, restrict local OS and database logon permissions to trusted users only.

AI-suggested. Run it in staging first and check it against the vendor advisory. Why?

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NVD description

Heap-based buffer overflow in SQL Server allows an authorized attacker to elevate privileges locally.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85919

Source: nvd.nist.gov/vuln/detail/CVE-2026-85919