CVE-2026-66816 PUBLISHED

Microsoft SQL Server Security Feature Bypass Vulnerability

Assigner: microsoft
Reserved: 27.07.2026 Published: 08.09.2026 Updated: 08.09.2026

Insufficient logging in SQL Server allows an authorized attacker to bypass a security feature over a network.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
CVSS Score: 6.5

Product Status

Vendor Microsoft
Product Microsoft SQL Server 2022 (CU 26)
Versions
  • affected from 16.0.0.0 to 16.0.4275.2 (excl.)
Vendor Microsoft
Product Microsoft SQL Server 2022 (GDR)
Versions
  • affected from 16.0.0 to 16.0.1200.5 (excl.)
Vendor Microsoft
Product Microsoft SQL Server 2025 (CU8)
Versions
  • affected from 17.0.0.0 to 17.0.4085.5 (excl.)
Vendor Microsoft
Product Microsoft SQL Server 2025 for x64-based Systems (GDR)
Versions
  • affected from 17.0.1050.2 to 17.0.1135.8 (excl.)

References

Problem Types