CVE-2026-45491 — MEDIUM (6.2)

Q: What is CVE-2026-45491?

CVE-2026-45491 is a vulnerability with a CVSS score of 6.2 (MEDIUM). Improper link resolution before file access ('link following') in .NET allows an unauthorized attacker to perform tampering locally.

Q: How severe is CVE-2026-45491?

CVE-2026-45491 has been rated MEDIUM with a CVSS base score of 6.2/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-45491?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft .Net, Apple Macos, Linux Linux Kernel, Microsoft Windows.

Vulnerability Description

Improper link resolution before file access ('link following') in .NET allows an unauthorized attacker to perform tampering locally.

CVSS Score

6.2

MEDIUM

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

HIGH

Availability

NONE

Affected Products

Vendor	Product	Versions
Microsoft	.Net	>= 8.0.0, < 8.0.28
Apple	Macos	-
Linux	Linux Kernel	-
Microsoft	Windows	-

Related Weaknesses (CWE)

CWE-59

References

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

FAQ

What is CVE-2026-45491?

CVE-2026-45491 is a vulnerability with a CVSS score of 6.2 (MEDIUM). Improper link resolution before file access ('link following') in .NET allows an unauthorized attacker to perform tampering locally.

How severe is CVE-2026-45491?

CVE-2026-45491 has been rated MEDIUM with a CVSS base score of 6.2/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-45491?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft .Net, Apple Macos, Linux Linux Kernel, Microsoft Windows.