What is CVE-2026-63828?

CVE-2026-63828 is a security advisory published by Microsoft Security Response Center (MSRC) with Critical severity. apparmor: mediate the implicit connect of TCP fast open sendmsg

Which CVE IDs does CVE-2026-63828 cover?

CVE-2026-63828 covers the following CVE IDs: CVE-2026-63828. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-63828?

CVE-2026-63828 has a CVSS v3 base score of 9.8, published by Microsoft Security Response Center (MSRC).

CVE-2026-63828CriticalCVSS 9.8

apparmor: mediate the implicit connect of TCP fast open sendmsg

Vendor

Microsoft Security Response Center (MSRC)

Published

July 23, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-63828 →