CVE-2026-68883
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
Authenticated network attackers can compromise the SQL Server host and elevate privileges to take full control across trust boundaries. They require low-privilege database credentials and network access to the SQL Server port first.
Root cause
A heap-based buffer overflow allows memory corruption when processing specific network inputs.
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 MSRC advisory; if patching must wait, restrict network access to SQL Server ports (default TCP 1433) so only trusted clients can connect.
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 elevate privileges over a network.