CVE-2026-45491

Improper link resolution before file access ('link following') in .NET allows an unauthorized attacker to perform tampering 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 NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45491	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

OR	cpe:2.3:a:microsoft:.net::::::::
	cpe:2.3:a:microsoft:.net::::::::
	cpe:2.3:a:microsoft:.net::::::::

OR	cpe:2.3:o:apple:macos:-:::::::*
	cpe:2.3:o:linux:linux_kernel:-:::::::*
	cpe:2.3:o:microsoft:windows:-:::::::*

Configuration 2 (hide)

cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*

History

23 Jul 2026, 08:10

Type	Values Removed	Values Added
Summary		(es) Resolución de enlaces incorrecta antes del acceso a archivos ('seguimiento de enlaces') en .NET permite a un atacante no autorizado realizar manipulaciones localmente.

17 Jun 2026, 22:39

Type	Values Removed	Values Added
First Time		Apple macos Apple Linux linux Kernel Microsoft windows Linux Microsoft Microsoft .net
CPE		cpe:2.3:o:microsoft:windows:-:::::::* cpe:2.3:a:microsoft:.net:::::::: cpe:2.3:o:apple:macos:-:::::::* cpe:2.3:o:linux:linux_kernel:-:::::::*
References	~~() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45491 -~~	() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45491 - Vendor Advisory

09 Jun 2026, 17:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-09 17:17

Updated : 2026-07-23 08:10

NVD link : CVE-2026-45491

Mitre link : CVE-2026-45491

CVE.ORG link : CVE-2026-45491

JSON object : View

Products Affected

microsoft

.net
windows

apple

macos

linux

linux_kernel

CWE

CWE-59

Improper Link Resolution Before File Access ('Link Following')

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