CVE-2026-88089
Analyzed
Analyzed - Analysis Complete
Heap-based Buffer Overflow in SQL Server
Vulnerability report for CVE-2026-88089, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-10-13
Last updated on: 2026-11-02
Assigner: Microsoft Corporation
Description
Description
Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code locally.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| microsoft | sql_server_2017 | From 14.0.1000.169 (inc) to 14.0.2140.2 (exc) |
| microsoft | sql_server_2017 | From 14.0.3006.16 (inc) to 14.0.3560.2 (exc) |
| microsoft | sql_server_2019 | From 15.0.2000.5 (inc) to 15.0.2200.2 (exc) |
| microsoft | sql_server_2019 | From 15.0.4003.23 (inc) to 15.0.4500.2 (exc) |
| microsoft | sql_server_2022 | From 16.0.4003.1 (inc) to 16.0.4305.5 (exc) |
| microsoft | sql_server_2022 | From 16.0.1000.6 (inc) to 16.0.1210.3 (exc) |
| microsoft | sql_server_2025 | From 17.0.1000.7 (inc) to 17.0.1145.4 (exc) |
| microsoft | sql_server_2025 | From 17.0.4006.2 (inc) to 17.0.5015.4 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-122 | A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). |
| CWE-20 | The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. |
