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CVE-2026-33827

Windows TCP/IP Remote Code Execution Vulnerability

Published: Apr 14, 2026Updated: Apr 17, 2026 Sources: CVE List NVD
NVD MITRE
8.1CVSS
HIGH

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows an unauthorized attacker to execute code over a network.

EPSS Score
0.1%
Top 80.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High

Weaknesses

CWE-362

Affected Products

windows 10 1607
microsoft
windows 10 1809
microsoft
windows 10 21h2
microsoft
windows 10 22h2
microsoft
windows 11 23h2
microsoft
and 30 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33827
msrc.microsoft.com

Timeline

Published
Apr 14, 2026
Last Updated
Apr 17, 2026

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