CVE-2026-26115
Received
Received - Intake
Privilege Escalation via Input Validation Flaw in SQL Server
Publication date: 2026-03-10
Last updated on: 2026-03-13
Assigner: Microsoft Corporation
Description
Description
Improper validation of specified type of input in SQL Server allows an authorized attacker to elevate privileges over a network.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| microsoft | sql_server_2016 | From 13.0.6300.2 (inc) to 13.0.6480.4 (exc) |
| microsoft | sql_server_2016 | From 13.0.7000.253 (inc) to 13.0.7075.5 (exc) |
| microsoft | sql_server_2017 | From 14.0.1000.169 (inc) to 14.0.2100.4 (exc) |
| microsoft | sql_server_2017 | From 14.0.3006.16 (inc) to 14.0.3520.4 (exc) |
| microsoft | sql_server_2022 | From 16.0.1000.6 (inc) to 16.0.1170.5 (exc) |
| microsoft | sql_server_2022 | From 16.0.4003.1 (inc) to 16.0.4240.4 (exc) |
| microsoft | sql_server_2025 | From 17.0.4006.2 (inc) to 17.0.4020.2 (exc) |
| microsoft | sql_server_2019 | From 15.0.2000.5 (inc) to 15.0.2160.4 (exc) |
| microsoft | sql_server_2019 | From 15.0.4003.23 (inc) to 15.0.4460.4 (exc) |
| microsoft | sql_server_2025 | From 17.0.1000.7 (inc) to 17.0.1050.2 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-1287 | The product receives input that is expected to be of a certain type, but it does not validate or incorrectly validates that the input is actually of the expected type. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability involves improper validation of a specified type of input in Microsoft SQL Server. It allows an authorized attacker to elevate their privileges over a network.
How can this vulnerability impact me? :
An attacker who is already authorized on the network can exploit this vulnerability to gain higher privileges than intended. This can lead to full control over the SQL Server, potentially compromising confidentiality, integrity, and availability of data.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know
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