CVE-2026-85876ImportantEoPLocal
Microsoft SQL Server Elevation of Privilege Vulnerability
Assessment
Use after free in SQL Server allows an authorized attacker to elevate privileges locally.
- Severity
- Important
- CVSS base score
- 7.0CVSS:3.1/
AV:L/ AC:H/ PR:L/ UI:N/ S:U/ C:H/ I:H/ A:H/ E:U/ RL:O/ RC:C - Impact
- Elevation of Privilege
- EPSS, next 30 days
- Not scored yet
- Public exploit code
- No Nuclei template lists it
- Exploitability
- Exploitation Unlikely
- Publicly disclosed
- No
- Customer action
- Required: apply the update
- Component
- SQL Server
- Weakness
- CWE-416: Use After Free
- Issued by
- Microsoft
- Published
- 13 Oct 2026 · October 2026
- Last revised
- 13 Oct 2026
CVSS 3.1 base metricsRed raises the risk · green lowers it
- Attack vector
- LocalAV:L
- Attack complexity
- HighAC:H
- Privileges required
- LowPR:L
- User interaction
- NoneUI:N
- Scope
- UnchangedS:U
- Confidentiality
- HighC:H
- Integrity
- HighI:H
- Availability
- HighA:H
Updates that fix it
6 KBs| KB | Type | Restart | Applies to | Other CVEs |
|---|---|---|---|---|
| KB5126934 | Security Update | Required | Microsoft SQL Server 2022 for x64-based Systems (CU27) | All CVEs in KB5126934 |
| KB5126967 | Security Update | Required | Microsoft SQL Server 2025 for x64-based Systems (CU9) | All CVEs in KB5126967 |
| KB5128492 | Security Update | Required | Microsoft SQL Server 2025 for x64-based Systems (GDR) | All CVEs in KB5128492 |
| KB5128493 | Security Update | Required | Microsoft SQL Server 2022 for x64-based Systems (GDR) | All CVEs in KB5128493 |
| KB5128494 | Security Update | Required | Microsoft SQL Server 2019 for x64-based Systems (CU32) | All CVEs in KB5128494 |
| KB5128495 | Security Update | Required | Microsoft SQL Server 2019 for x64-based Systems (GDR) | All CVEs in KB5128495 |
Affected products
SQL Server7 affected products
- Microsoft SQL Server 2019 for x64-based Systems (CU32)
- Microsoft SQL Server 2019 for x64-based Systems (GDR)
- Microsoft SQL Server 2022 for x64-based Systems (CU27)
- Microsoft SQL Server 2022 for x64-based Systems (GDR)
- Microsoft SQL Server 2025 for x64-based Systems (CU8)
- Microsoft SQL Server 2025 for x64-based Systems (CU9)
- Microsoft SQL Server 2025 for x64-based Systems (GDR)
What changed
First observed 14 Oct 2026No field changes in the recorded history.
Cite this recorded revision to keep the same title, summary, facts and links when the page changes.
A day selects the latest observation by the end of that UTC day; today's selection can change until midnight. History starts when this installation records it.