CVE-2026-68883
Microsoft SQL Server Elevation of Privilege Vulnerability
At a glance
- Severity
- HIGH 8.5
- EPSS
- EPSS 0.56 % · percentile 46 (2026-10-27)
- State
- PUBLISHED
- Published
- Updated
- Assigner
- microsoft
- NVD status
- Awaiting Analysis
Description
Heap-based buffer overflow in SQL Server allows an authorized attacker to elevate privileges over a network.
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 8.5 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C | microsoft |
| CVSS 3.1 | HIGH 8.5 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H | NVD · secure@microsoft.com (Secondary) |
Weaknesses (CWE)
European references
- ENISA EUVD · EUVD-2026-100709
- GCVE · GCVE-0-2026-68883
CERT-FR advisories
- CERTFR-2026-AVI-1316 — Multiples vulnérabilités dans les produits Microsoft · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Microsoft · Microsoft SQL Server 2017 (GDR) | affected 14.0.0 < 14.0.2140.2 |
| Microsoft · Microsoft SQL Server 2017 for x64-based Systems (CU31) | affected 14.0.3006.16 < 14.0.3560.2 |
| Microsoft · Microsoft SQL Server 2019 (GDR) | affected 15.0.0 < 15.0.2200.2 |
| Microsoft · Microsoft SQL Server 2019 for x64-based Systems (CU32) | affected 15.0.4003.23 < 15.0.4500.2 |
| Microsoft · Microsoft SQL Server 2022 (GDR) | affected 16.0.0 < 16.0.1210.3 |
| Microsoft · Microsoft SQL Server 2022 for x64-based Systems (CU27) | affected 16.0.4003.1 < 16.0.4305.5 |
| Microsoft · Microsoft SQL Server 2025 (CU8) | affected - |
| Microsoft · Microsoft SQL Server 2025 for x64-based Systems (CU9) | affected 17.0.4006.2 < 17.0.5015.4 |
| Microsoft · Microsoft SQL Server 2025 for x64-based Systems (GDR) | affected 17.0.1050.2 < 17.0.1145.4 |
References
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 |