CVE-2026-20803
Microsoft SQL Server Elevation of Privilege Vulnerability
HIGH 7.2
At a glance
- Source
- NVD
- EPSS
- EPSS 1.25 % · percentile 69 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- microsoft
- NVD status
- Analyzed
Description
Missing authentication for critical function in SQL Server allows an authorized attacker to elevate privileges over a network.
Weaknesses (CWE)
- CWE-306 — Missing Authentication for Critical Function
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.2 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C | microsoft |
| CVSS 3.1 | HIGH 7.2 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H | NVD · secure@microsoft.com (Secondary) |
European references
- ENISA EUVD · EUVD-2026-2196
- GCVE · GCVE-0-2026-20803
CERT-FR advisories
- CERTFR-2026-AVI-0046 — Multiples vulnérabilités dans les produits Microsoft · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:microsoft:sql_server_2022:*:*:*:*:*:*:x64:*≥ 16.0.1000.6 < 16.0.1165.1cpe:2.3:a:microsoft:sql_server_2022:*:*:*:*:*:*:x64:*≥ 16.0.4003.1 < 16.0.4230.2cpe:2.3:a:microsoft:sql_server_2025:17.0.1000.7:*:*:*:*:*:x64:*
Affected products
| Product | Versions |
|---|---|
| Microsoft · Microsoft SQL Server 2022 (GDR) | affected 16.0.0 < 16.0.1165.1 |
| Microsoft · Microsoft SQL Server 2022 for x64-based Systems (CU 22) | affected 16.0.0.0 < 16.0.4230.2 |
| Microsoft · Microsoft SQL Server 2025 for x64-based Systems (GDR) | affected 17.0.1050.2 < 17.0.1050.2 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |