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CVE-2026-40406

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Moole Vulnerability Database

Find real vulnerabilities before they ship

Vulnerability Database › CVE-2026-40406

High

CVE-2026-40406

Use after free in Windows TCP/IP allows an unauthorized attacker to disclose information over a network.

VectorNETWORK

PublishedMay 12, 2026, 18:17

Published Bysecure@microsoft.com

Base Score

Score7.5

Affected Versions

No affected versions found.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40406

Weakness Type

CWE-416

CVSS Metrics

Base Score

7.5

Vector String

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Base SeverityHigh

Version

3.1

Attack Vector (AV)

NETWORK