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CVE-2026-109468

7.5 high SSVC exploitation: none Published
NVD · CVE.org

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

Fix

Microsoft's update · Important

  • Release Notes — System.Formats.Cbor on .NET 10.0 runtime installed on Windows, System.Formats.Cbor on .NET 10.0 runtime installed on Linux, System.Formats.Cbor on .NET 10.0 runtime installed on Mac OS · build 10.0.13
  • Release Notes — System.Formats.Cbor on .NET 8.0 runtime installed on Windows, System.Formats.Cbor on .NET 8.0 runtime installed on Linux, System.Formats.Cbor on .NET 8.0 runtime installed on Mac OS · build 8.0.1
  • Release Notes — System.Formats.Cbor on .NET 9.0 runtime installed on Windows, System.Formats.Cbor on .NET 9.0 runtime installed on Linux, System.Formats.Cbor on .NET 9.0 runtime installed on Mac OS · build 9.0.21
  • Release Notes — Microsoft Visual Studio 2026 version 18.10 · build 18.10.4 · restart required
  • Release Notes — Microsoft Visual Studio 2022 version 17.14 · build 17.14.42 · restart required

From the 2026-Oct release note of Microsoft's Security Update Guide, revised 2026-10-29 · Exploitation Less Likely.

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 5

  1. StatusAwaiting Analysis → PublishedNVD modified 2026-10-22 21:45
  2. StatusPublished → Awaiting AnalysisNVD modified 2026-10-22 22:18
  3. StatusAwaiting Analysis → PublishedNVD modified 2026-10-19 19:30
  4. StatusReceived → Awaiting AnalysisNVD modified 2026-10-16 19:23
  5. First seenCVSS 7.5NVD modified 2026-10-15 21:17

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 1