CVE-2026-45591

high

Description

Uncontrolled resource consumption in ASP.NET Core allows an unauthorized attacker to deny service over a network.

References

https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45591.json

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45591

https://bugzilla.redhat.com/show_bug.cgi?id=2487224

https://access.redhat.com/security/cve/CVE-2026-45591

https://access.redhat.com/errata/RHSA-2026:28227

https://access.redhat.com/errata/RHSA-2026:28051

https://access.redhat.com/errata/RHSA-2026:28011

https://access.redhat.com/errata/RHSA-2026:28009

https://access.redhat.com/errata/RHSA-2026:28007

https://access.redhat.com/errata/RHSA-2026:26994

https://access.redhat.com/errata/RHSA-2026:26638

https://access.redhat.com/errata/RHSA-2026:25222

https://access.redhat.com/errata/RHSA-2026:25221

https://access.redhat.com/errata/RHSA-2026:25220

https://access.redhat.com/errata/RHSA-2026:25115

https://access.redhat.com/errata/RHSA-2026:25114

https://access.redhat.com/errata/RHSA-2026:25113

https://access.redhat.com/errata/RHSA-2026:25112

https://access.redhat.com/errata/RHSA-2026:25111

https://access.redhat.com/errata/RHSA-2026:25110

https://access.redhat.com/errata/RHSA-2026:17527

Details

Source: Mitre, NVD

Published: 2026-06-09

Updated: 2026-06-30

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 7.5

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

Severity: High

EPSS

EPSS: 0.01663