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NVD Vulnerability Details :
CVE-2026-40415
Analyzed
More Info
Official Page
Source
-
secure@microsoft.com
View Known Exploited Vulnerability (KEV) details
Published At
-
12 May, 2026 | 18:17
Updated At
-
15 May, 2026 | 15:06
Use after free in Windows TCP/IP allows an unauthorized attacker to execute code over a network.
CISA Catalog
Date Added
Due Date
Vulnerability Name
Required Action
N/A
Date Added:
N/A
Due Date:
N/A
Vulnerability Name:
N/A
Required Action:
N/A
Metrics
Type
Version
Base score
Base severity
Vector
Primary
3.1
8.1
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Type:
Primary
Version:
3.1
Base score:
8.1
Base severity:
HIGH
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CPE Matches
Microsoft Corporation
microsoft
>>
windows_10_1809
>>
Versions before 10.0.17763.8755(exclusive)
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*
Microsoft Corporation
microsoft
>>
windows_10_1809
>>
Versions before 10.0.17763.8755(exclusive)
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*
Microsoft Corporation
microsoft
>>
windows_10_21h2
>>
Versions before 10.0.19044.7291(exclusive)
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:arm64:*
Microsoft Corporation
microsoft
>>
windows_10_21h2
>>
Versions before 10.0.19044.7291(exclusive)
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x64:*
Microsoft Corporation
microsoft
>>
windows_10_21h2
>>
Versions before 10.0.19044.7291(exclusive)
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x86:*
Microsoft Corporation
microsoft
>>
windows_10_22h2
>>
Versions before 10.0.19045.7291(exclusive)
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:arm64:*
Microsoft Corporation
microsoft
>>
windows_10_22h2
>>
Versions before 10.0.19045.7291(exclusive)
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x64:*
Microsoft Corporation
microsoft
>>
windows_10_22h2
>>
Versions before 10.0.19045.7291(exclusive)
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x86:*
Microsoft Corporation
microsoft
>>
windows_11_23h2
>>
Versions before 10.0.22631.7079(exclusive)
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:arm64:*
Microsoft Corporation
microsoft
>>
windows_11_23h2
>>
Versions before 10.0.22631.7079(exclusive)
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:x64:*
Microsoft Corporation
microsoft
>>
windows_11_24h2
>>
Versions before 10.0.26100.8390(exclusive)
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:arm64:*
Microsoft Corporation
microsoft
>>
windows_11_24h2
>>
Versions before 10.0.26100.8390(exclusive)
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:x64:*
Microsoft Corporation
microsoft
>>
windows_11_25h2
>>
Versions before 10.0.26200.8390(exclusive)
cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:arm64:*
Microsoft Corporation
microsoft
>>
windows_11_25h2
>>
Versions before 10.0.26200.8390(exclusive)
cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:x64:*
Microsoft Corporation
microsoft
>>
windows_11_26h1
>>
Versions before 10.0.28000.2113(exclusive)
cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:arm64:*
Microsoft Corporation
microsoft
>>
windows_11_26h1
>>
Versions before 10.0.28000.2113(exclusive)
cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:x64:*
Microsoft Corporation
microsoft
>>
windows_server_2019
>>
Versions before 10.0.17763.8755(exclusive)
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
Microsoft Corporation
microsoft
>>
windows_server_2022
>>
Versions before 10.0.20348.5074(exclusive)
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
Microsoft Corporation
microsoft
>>
windows_server_2022_23h2
>>
Versions before 10.0.25398.2330(exclusive)
cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*
Microsoft Corporation
microsoft
>>
windows_server_2025
>>
Versions before 10.0.26100.32772(exclusive)
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*
Load More
Weaknesses
CWE ID
Type
Source
CWE-416
Primary
secure@microsoft.com
CWE ID:
CWE-416
Type:
Primary
Source:
secure@microsoft.com
Evaluator Description
Evaluator Impact
Evaluator Solution
Vendor Statements
References
Hyperlink
Source
Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40415
secure@microsoft.com
Vendor Advisory
Hyperlink:
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40415
Source:
secure@microsoft.com
Resource:
Vendor Advisory
Change History
0
Changes found
Details not found