CVE-2026-45490

Improper authorization in .NET allows an authorized attacker to elevate privileges locally.

Score

CVSS 3.1 7.8 High

Status

Modified - secure@microsoft.com

Published

2026-06-09

Last modified

2026-09-24

Weaknesses

CWE-266, CWE-285, CWE-863

Affected products

• .net (Microsoft)
• Enterprise Linux (Redhat)
• Hummingbird (Redhat)

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45490
• 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