CVE-2026-54116: CWE-843: Access of Resource Using Incompatible Type ('Type Confusion') in Microsoft Microsoft SQL Server 2025 (CU 6)
CVE-2026-54116 is a type confusion vulnerability in Microsoft SQL Server 2025 (CU 6) that allows an authorized attacker to disclose information over a network. The vulnerability arises from accessing a resource using an incompatible type, classified under CWE-843. It has a CVSS 3.1 base score of 6.5, indicating medium severity. An official fix is available from Microsoft to address this issue.
AI Analysis
Technical Summary
This vulnerability involves type confusion in Microsoft SQL Server 2025 (CU 6), where an authorized user can exploit improper handling of resource types to gain unauthorized information disclosure over the network. The issue is tracked as CWE-843 and has been assigned CVE-2026-54116. Microsoft has published an official fix for this vulnerability, mitigating the risk. There are no known exploits in the wild at this time.
Potential Impact
Successful exploitation allows an authorized attacker to disclose sensitive information over the network without impacting integrity or availability. The confidentiality impact is high, while integrity and availability impacts are none.
Mitigation Recommendations
An official fix is available from Microsoft. Users should apply the security update provided by Microsoft for Microsoft SQL Server 2025 (CU 6) to remediate this vulnerability. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54116 for detailed patching instructions.
CVE-2026-54116: CWE-843: Access of Resource Using Incompatible Type ('Type Confusion') in Microsoft Microsoft SQL Server 2025 (CU 6)
Description
CVE-2026-54116 is a type confusion vulnerability in Microsoft SQL Server 2025 (CU 6) that allows an authorized attacker to disclose information over a network. The vulnerability arises from accessing a resource using an incompatible type, classified under CWE-843. It has a CVSS 3.1 base score of 6.5, indicating medium severity. An official fix is available from Microsoft to address this issue.
CVSS v3.1
Score 6.5medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves type confusion in Microsoft SQL Server 2025 (CU 6), where an authorized user can exploit improper handling of resource types to gain unauthorized information disclosure over the network. The issue is tracked as CWE-843 and has been assigned CVE-2026-54116. Microsoft has published an official fix for this vulnerability, mitigating the risk. There are no known exploits in the wild at this time.
Potential Impact
Successful exploitation allows an authorized attacker to disclose sensitive information over the network without impacting integrity or availability. The confidentiality impact is high, while integrity and availability impacts are none.
Mitigation Recommendations
An official fix is available from Microsoft. Users should apply the security update provided by Microsoft for Microsoft SQL Server 2025 (CU 6) to remediate this vulnerability. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54116 for detailed patching instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-11T20:33:37.835Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54116","vendor":"Microsoft"}]
Threat ID: 6a5676ad68715ace43f097ca
Added to database: 07/14/2026, 17:49:33 UTC
Last enriched: 07/14/2026, 20:10:06 UTC
Last updated: 07/15/2026, 02:47:21 UTC
Views: 3
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