CVE-2026-45591 (GCVE-0-2026-45591)

Vulnerability from cvelistv5 – Published: 2026-06-09 17:05 – Updated: 2026-07-15 20:09
VLAI
Title
ASP.NET Core Denial of Service Vulnerability
Summary
Uncontrolled resource consumption in ASP.NET Core allows an unauthorized attacker to deny service over a network.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-400 - Uncontrolled Resource Consumption
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
URL Tags
https://msrc.microsoft.com/update-guide/vulnerabi… vendor-advisorypatch
https://access.redhat.com/security/cve/CVE-2026-45591 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2487224 issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v… x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2026:28007 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:28009 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:25115 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:25111 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:25112 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:25114 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:25110 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:25113 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:28227 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:28011 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:28051 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:25222 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:25220 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:25221 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:26638 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:26994 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:17527 vendor-advisoryx_refsource_REDHAT
Impacted products
Vendor Product Version
Microsoft .NET 10.0 Affected: 10.0.0 , < 10.0.9 (custom)
Create a notification for this product.
Microsoft .NET 8.0 Affected: 8.0.0 , < 8.0.28 (custom)
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Microsoft .NET 9.0 Affected: 9.0.0 , < 9.0.17 (custom)
Create a notification for this product.
Microsoft ASP.NET Core 10.0 Affected: 10.0 , < 10.0.9 (custom)
Create a notification for this product.
Microsoft ASP.NET Core 8.0 Affected: 8.0 , < 8.0.28 (custom)
Create a notification for this product.
Microsoft ASP.NET Core 9.0 Affected: 9.0 , < 9.0.17 (custom)
Create a notification for this product.
Microsoft Microsoft Visual Studio 2026 version 18.6 Affected: 18.6.0 , < 18.6.3 (custom)
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:8.0.128-1.el10_2 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:10.2
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:9.0.118-1.el10_2 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:10.2
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:10.0.109-1.el10_2 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:10.2
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support Unaffected: 0:8.0.128-1.el10_0 , < * (rpm)
    cpe:/o:redhat:enterprise_linux_eus:10.0
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support Unaffected: 0:9.0.118-1.el10_0 , < * (rpm)
    cpe:/o:redhat:enterprise_linux_eus:10.0
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:8.0.128-1.el8_10 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:8
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:9.0.118-1.el8_10 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:8
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:10.0.109-1.el8_10 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:8
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:8.0.128-1.el9_8 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:9
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:9.0.118-1.el9_8 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:9
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:10.0.109-1.el9_8 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:9
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:8.0.128-1.el9_4 , < * (rpm)
    cpe:/a:redhat:rhel_e4s:9.4
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:8.0.128-1.el9_6 , < * (rpm)
    cpe:/a:redhat:rhel_eus:9.6
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:9.0.118-1.el9_6 , < * (rpm)
    cpe:/a:redhat:rhel_eus:9.6
 Create a notification for this product.
Red Hat Red Hat Hardened Images Unaffected: 9.0.117-1.hum1 , < * (rpm)
    cpe:/a:redhat:hummingbird:1
 Create a notification for this product.
Red Hat Red Hat Hardened Images Unaffected: 10.0.109-1.hum1 , < * (rpm)
    cpe:/a:redhat:hummingbird:1
 Create a notification for this product.
Red Hat Red Hat Hardened Images Unaffected: 8.0.128-1.hum1 , < * (rpm)
    cpe:/a:redhat:hummingbird:1
 Create a notification for this product.
Date Public
2026-06-09 14:00
Show details on NVD website
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  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.