CVE-2026-66816: Microsoft SQL Server Security Feature Bypass Vulnerability
Microsoft · Microsoft SQL Server 2022 (CU 26)
Vendor fix available · Affected: Microsoft SQL Server 2022 (CU 26) · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 63% of scored CVEs
DescriptionCVE.org
Insufficient logging in SQL Server allows an authorized attacker to bypass a security feature over a network.
Affected products4
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Microsoft · Microsoft SQL Server 2022 (CU 26)from 16.0.0.0 before 16.0.4275.2
- Microsoft · Microsoft SQL Server 2022 (GDR)from 16.0.0 before 16.0.1200.5
- Microsoft · Microsoft SQL Server 2025 (CU8)from 17.0.0.0 before 17.0.4085.5
- Microsoft · Microsoft SQL Server 2025 for x64-based Systems (GDR)from 17.0.1050.2 before 17.0.1135.8
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- Microsoft
- Published
- September 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-66816 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.