TI-2026-75039 Aliases CVE-2026-109468

ASP.NET Core Denial of Service Vulnerability

LOW 35CWE-770Published 2026-10-15 · Updated 2026-10-31

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-770.

Summary

CVE-2026-109468 is an allocation of resources without limits or throttling in ASP.NET Core that lets an unauthorized attacker deny service over a network. The weakness is classified as CWE-770, with a CVSS 3.1 base score of 7.5 (HIGH), and Red Hat rates the issue Important. CISA has not added it to the Known Exploited Vulnerabilities catalog, and its references include no exploit link. CISA's SSVC data lists exploitation as none, automatable as no and technical impact as partial.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.0095 61st percentileScored 2026-11-07

Fix Fixed Microsoft Visual Studio 2022 version 17.14 (Microsoft): 17.14.42Microsoft Visual Studio 2026 version 18.10 (Microsoft): 18.10.4+1 more product

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Microsoft	Microsoft Visual Studio 2022 version 17.14	17.14.0 to before 17.14.42	17.14.42	Patch available	CNA
Microsoft	Microsoft Visual Studio 2026 version 18.10	18.10.0 to before 18.10.4	18.10.4	Patch available	CNA
Microsoft	System.Formats.Cbor	10.0.0 to before 10.0.13	10.0.13	Patch available	CNA

Microsoft Visual Studio 2022 version 17.14 VendorMicrosoft Affected 17.14.0 to before 17.14.42 Fixed in 17.14.42 Patch available CNA
Microsoft Visual Studio 2026 version 18.10 VendorMicrosoft Affected 18.10.0 to before 18.10.4 Fixed in 18.10.4 Patch available CNA
System.Formats.Cbor VendorMicrosoft Affected 10.0.0 to before 10.0.13 Fixed in 10.0.13 Patch available CNA

Remediation

Update Microsoft Visual Studio 2022 version 17.14 to 17.14.42, Microsoft Visual Studio 2026 version 18.10 to 18.10.4, and System.Formats.Cbor to 10.0.13.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Fix · CNA Microsoft Visual Studio 2022 version 17.14 (Microsoft) Fixed in 17.14.42
Fix · CNA Microsoft Visual Studio 2026 version 18.10 (Microsoft) Fixed in 18.10.4
Fix · CNA System.Formats.Cbor (Microsoft) Fixed in 10.0.13

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

Not affected: 1 product

Red Hat Hardened Images

Timeline

2026-10-16 Threatist record created from CVE-2026-109468
2026-10-16 Affected versions changed · Red Hat
2026-10-16 CVSS score added · Red Hat
2026-10-20 EPSS moved to the 50th–90th percentile

References

Patch 1

ASP.NET Core Denial of Service Vulnerability

TI-2026-42212 Microsoft SharePoint Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
TI-2026-37256 Microsoft SharePoint Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
TI-2026-26194 Windows Internet Key Exchange (IKE) Service Extensions Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
TI-2026-16982 Microsoft SharePoint Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
TI-2025-36863 Windows Server Update Service (WSUS) Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
TI-2025-33671 Microsoft SharePoint Server Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8

See all 18045 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences