CVE-2026-45490

Public on 2026-06-09
Modified on 2026-06-23
Description
Improper authorization in .NET allows an authorized attacker to elevate privileges locally.
Severity
Important severity
Important
See what this means
CVSS v3 Base Score
7.8
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 2023 dotnet10.0 2026-06-22 ALAS2023-2026-1867 Fixed
Amazon Linux 2023 dotnet6.0 Not Affected
Amazon Linux 2023 dotnet8.0 2026-06-22 ALAS2023-2026-1869 Fixed
Amazon Linux 2023 dotnet9.0 2026-06-22 ALAS2023-2026-1868 Fixed

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

FAQs regarding Amazon Linux ALAS/CVE Severity Red Hat: CVE-2026-45490 Mitre: CVE-2026-45490