CVE-2026-85886
8.5HighPublished 13 Oct 2026 · NVD status: Awaiting Analysis · AI triage by gemini-3.8-flash
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
- Impact
- Full C/I/A compromise
- Weakness
- CWE-122
Impact
An authorized network attacker can execute arbitrary code on the database host. They need low-privilege network access and valid credentials to SQL Server first.
Root cause
A heap-based buffer overflow flaw permits memory corruption and code execution via crafted network requests.
Affected systems
Versions not listed — check the vendor advisory.
CVSS v3.1 · CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Fix & remediation
Install the security update from the vendor advisory once identified, and restrict SQL Server network access (port 1433) to trusted IPs only while awaiting patching.
AI-suggested. Run it in staging first and check it against the vendor advisory. Why?
NVD description
Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.