Microsoft SQL Server 2022 (CU 26) vulnerability

Stack-based buffer overflow in SQL Server allows an unauthorized attacker to execute code over a network.

Published 13 Oct 2026Updated 16 Oct 20261 sources
CVSS 7.5

What happened

Stack-based buffer overflow in SQL Server allows an unauthorized attacker to execute code over a network.

Affected versions

Microsoft SQL Server 2022 (CU 26): -; 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.