CVE-2026-109468

Status: Awaiting AnalysisHigh (7.5)—

Severity7.5High · CVSS 3.1

Exploitation probability0.65 %higher than 50% of CVEs

Active exploitationNonot in the CISA catalog

Public exploitNot knownno public code found

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

CVSS

Base score: 7.5
Version: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 0.65 %
Percentile among all scored CVEs: 50
Score date: 10/20/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

ExploitationT1190 Exploit Public-Facing Applicationinitial access90 %
Primary impactT1499 Endpoint Denial of Serviceimpact90 %

Vector AV:N/PR:N/UI:N con impacto solo en disponibilidad (A:H) y CWE-770 sin límites de recursos: DoS por red sin autenticar.

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

ATT&CK mitigations that cover these techniques

Filter Network Traffic Vulnerability Scanning Privileged Account Management Network Segmentation Limit Access to Resource Over Network Application Isolation and Sandboxing

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Microsoft — Asp.net Core^AI

CWEs

CWE-770

References

Show 1 references

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-109468

Raw JSON (NVD)

Show

{
  "id": "CVE-2026-109468",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-109468",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-10-16T01:02:29.736327Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "secure@microsoft.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "secure@microsoft.com",
      "affectedData": [
        {
          "vendor": "Microsoft",
          "product": "Microsoft Visual Studio 2022 version 17.14",
          "versions": [
            {
              "status": "affected",
              "version": "17.14.0",
              "lessThan": "17.14.42",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft Visual Studio 2026 version 18.10",
          "versions": [
            {
              "status": "affected",
              "version": "18.10.0",
              "lessThan": "18.10.4",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "System.Formats.Cbor",
          "versions": [
            {
              "status": "affected",
              "version": "10.0.0",
              "lessThan": "10.0.13",
              "versionType": "custom"
            }
          ],
          "platforms": [
            ".NET 10.0 installed on Linux",
            ".NET 10.0 installed on Mac OS",
            ".NET 10.0 installed on Windows",
            ".NET 8.0 installed on Linux",
            ".NET 8.0 installed on Mac OS",
            ".NET 8.0 installed on Windows",
            ".NET 9.0 installed on Linux",
            ".NET 9.0 installed on Mac OS",
            ".NET 9.0 installed on Windows"
          ]
        }
      ]
    }
  ],
  "published": "2026-10-15T21:17:12.880",
  "references": [
    {
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-109468",
      "source": "secure@microsoft.com"
    }
  ],
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "secure@microsoft.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network."
    }
  ],
  "lastModified": "2026-10-16T19:23:18.623",
  "sourceIdentifier": "secure@microsoft.com"
}