Microsoft SQL Server 2017 (GDR) vulnerability

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

Published 13 Oct 2026Updated 16 Oct 20261 sources
CVSS 8.5

What happened

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

Affected versions

Microsoft SQL Server 2017 (GDR): 14.0.0 through before 14.0.2140.2 (custom); 14.0.3006.16 through before 14.0.3560.2 (custom); 15.0.0 through before 15.0.2200.2 (custom); 15.0.4003.23 through before 15.0.4500.2 (custom); 16.0.0 through before 16.0.1210.3 (custom); 16.0.4003.1 through before 16.0.4305.5 (custom); -; 17.0.4006.2 through before 17.0.5015.4 (custom); 17.0.1050.2 through before 17.0.1145.4 (custom) Fixed: See vendor advisory.

Why it matters

Review the vendor advisory and exposure of the affected product to determine operational impact.

Detection & mitigation

  • Apply vendor-provided updates or mitigations.
  • Review affected product exposure and access logs.

Public PoC references

No public PoC reference has passed the current publication threshold.