CVE-2026-88084: CWE-770: Allocation of Resources Without Limits or Throttling in Microsoft Microsoft SQL Server 2019 (GDR)
Description
Allocation of resources without limits or throttling in SQL Server allows an authorized attacker to deny service over a network.
CVSS v3.1
Score 5.3medium
Affected software
Microsoft
Microsoft SQL Server 2019 (GDR)
Microsoft
Microsoft SQL Server 2019 for x64-based Systems (CU32)
Microsoft
Microsoft SQL Server 2025 (CU8)
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-88084) in Microsoft SQL Server 2019 (GDR) is classified under CWE-770, which involves allocation of resources without limits or throttling. An authorized attacker can exploit this flaw to cause a denial of service (DoS) condition by consuming excessive resources over the network. The CVSS 3.1 base score is 5.3, indicating medium severity, with network attack vector, high attack complexity, low privileges required, no user interaction, and impact limited to availability. The vulnerability affects versions >=15.0.0 <15.0.2200.2 and >=15.0.4003.23 <15.0.4500.2. Microsoft has issued an official fix for this vulnerability.
Potential Impact
An authorized attacker can exploit this vulnerability to cause a denial of service by exhausting resources on the affected Microsoft SQL Server 2019 instances. There is no impact on confidentiality or integrity, only availability is affected.
Mitigation Recommendations
An official fix is available from Microsoft. Users should apply the security updates provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88084 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-09-09T21:47:30.203Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88084","vendor":"Microsoft"}]
Threat ID: 6ace9d332cdf04f656af1da0
Added to database: 10/13/2026, 21:05:55 UTC
Last enriched: 10/13/2026, 21:19:06 UTC
Last updated: 10/13/2026, 22:50:43 UTC
Views: 5
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