CVE-2026-54116Important
Microsoft SQL Server Information Disclosure Vulnerability
Assessment
Access of resource using incompatible type ('type confusion') in SQL Server allows an authorized attacker to disclose information over a network.
- Severity
- Important
- CVSS base score
- 6.5CVSS:3.1/
AV:N/ AC:L/ PR:L/ UI:N/ S:U/ C:H/ I:N/ A:N - Impact
- Information Disclosure
- EPSS, next 30 days
- 1.0%Higher than 61.2% of scored CVEs · FIRST model run 26 Sep 2026 · about EPSS
- Exploitability
- Exploitation Less Likely
- Publicly disclosed
- No
- Customer action
- Required: apply the update
- Component
- SQL Server
- Weakness
- CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')
- Issued by
- Microsoft
- Published
- 14 Jul 2026 · July 2026
- Last revised
- 14 Jul 2026
Updates that fix it
2 KBs| KB | Type | Restart | Applies to | Other CVEs |
|---|---|---|---|---|
| KB5101346 | Security Update | — | Microsoft SQL Server 2025 for x64-based Systems (CU6) | All CVEs in KB5101346 |
| KB5102333 | Security Update | — | Microsoft SQL Server 2025 for x64-based Systems (GDR) | All CVEs in KB5102333 |
Affected products
SQL Server2 affected products
- Microsoft SQL Server 2025 for x64-based Systems (CU6)
- Microsoft SQL Server 2025 for x64-based Systems (GDR)