Vulnerability Description
Improper authorization in .NET allows an authorized attacker to elevate privileges locally.
CVSS Score
7.8
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | .Net | >= 8.0.0, < 8.0.28 |
| Microsoft | Windows | - |
Related Weaknesses (CWE)
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45490Vendor Advisory
- https://access.redhat.com/security/cve/CVE-2026-45490
- https://bugzilla.redhat.com/show_bug.cgi?id=2487184
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45490.json
FAQ
What is CVE-2026-45490?
CVE-2026-45490 is a vulnerability with a CVSS score of 7.8 (HIGH). Improper authorization in .NET allows an authorized attacker to elevate privileges locally.
How severe is CVE-2026-45490?
CVE-2026-45490 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-45490?
Check the references section above for vendor advisories and patch information. Affected products include: Microsoft .Net, Microsoft Windows.