CVE-2026-50420

Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to disclose information locally.

CVSS v3 6.2 MEDIUM

6.2^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.5 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50420	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:microsoft:windows_11_24h2:::::::arm64:*
	cpe:2.3:o:microsoft:windows_11_24h2:::::::x64:*
	cpe:2.3:o:microsoft:windows_11_25h2:::::::arm64:*
	cpe:2.3:o:microsoft:windows_11_25h2:::::::x64:*
	cpe:2.3:o:microsoft:windows_11_26h1:::::::x64:*
	cpe:2.3:o:microsoft:windows_11_26h1:::::::arm64:*
	cpe:2.3:o:microsoft:windows_server_2025::::::::

History

14 Oct 2026, 22:10

Type	Values Removed	Values Added
Summary		(es) Lectura fuera de límites en Windows HTTP.sys permite a un atacante no autorizado divulgar información localmente.

Information

Published : 2026-07-14 18:17

Updated : 2026-10-14 22:10

NVD link : CVE-2026-50420

Mitre link : CVE-2026-50420

CVE.ORG link : CVE-2026-50420

JSON object : View

Products Affected

microsoft

windows_11_25h2
windows_11_24h2
windows_11_26h1
windows_server_2025

CWE

CWE-125

Out-of-bounds Read

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