CVE-2026-40399
Analyzed
Analyzed - Analysis Complete
BaseFortify
Publication date: 2026-05-12
Last updated on: 2026-05-15
Assigner: Microsoft Corporation
Description
Description
Stack-based buffer overflow in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| microsoft | windows_10_1607 | to 10.0.14393.9140 (exc) |
| microsoft | windows_10_1809 | to 10.0.17763.8755 (exc) |
| microsoft | windows_10_21h2 | to 10.0.19044.7291 (exc) |
| microsoft | windows_10_22h2 | to 10.0.19045.7291 (exc) |
| microsoft | windows_11_23h2 | to 10.0.22631.7079 (exc) |
| microsoft | windows_11_24h2 | to 10.0.26100.8390 (exc) |
| microsoft | windows_11_25h2 | to 10.0.26200.8390 (exc) |
| microsoft | windows_11_26h1 | to 10.0.28000.2113 (exc) |
| microsoft | windows_server_2016 | to 10.0.14393.9140 (exc) |
| microsoft | windows_server_2019 | to 10.0.17763.8755 (exc) |
| microsoft | windows_server_2022 | to 10.0.20348.5074 (exc) |
| microsoft | windows_server_2022_23h2 | to 10.0.25398.2330 (exc) |
| microsoft | windows_server_2025 | to 10.0.26100.32772 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-121 | A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). |
Attack-Flow Graph
Ask Our AI Assistant
Need more information? Ask your question to get an AI reply (Powered by our expertise)
0/70