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Description

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

PUBLISHED Reserved 2026-05-12 | Published 2026-06-09 | Updated 2026-06-10 | Assigner microsoft




HIGH: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Problem types

CWE-285: Improper Authorization

Product status

10.0.0 (custom) before 10.0.9
affected

8.0.0 (custom) before 8.0.28
affected

9.0.0 (custom) before 9.0.17
affected

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45490 (.NET SDK Elevation of Privilege Vulnerability) vendor-advisory patch

cve.org (CVE-2026-45490)

nvd.nist.gov (CVE-2026-45490)

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