FKIE_CVE-2026-44805

Vulnerability from fkie_nvd - Published: 2026-06-09 17:17 - Updated: 2026-06-11 18:55
Severity
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
Use after free in Windows Network Controller (NC) Host Agent allows an authorized attacker to deny service locally.
References
secure@microsoft.comhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-44805Vendor Advisory
Impacted products
Vendor Product Version
microsoft windows_server_2019 *
microsoft windows_server_2022 *
microsoft windows_server_2025 *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "07C08212-A30E-4434-A17C-542E45D1E272",
              "versionEndExcluding": "10.0.17763.8880",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "27363D97-D4A9-4709-9854-F78F7EBCFB27",
              "versionEndExcluding": "10.0.20348.5256",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:x64:*",
              "matchCriteriaId": "E127A6E6-C261-4039-8A13-A2FAC4606573",
              "versionEndExcluding": "10.0.26100.32995",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Use after free in Windows Network Controller (NC) Host Agent allows an authorized attacker to deny service locally."
    }
  ],
  "id": "CVE-2026-44805",
  "lastModified": "2026-06-11T18:55:54.507",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "secure@microsoft.com",
        "type": "Primary"
      }
    ]
  },
  "published": "2026-06-09T17:17:16.480",
  "references": [
    {
      "source": "secure@microsoft.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-44805"
    }
  ],
  "sourceIdentifier": "secure@microsoft.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        },
        {
          "lang": "en",
          "value": "CWE-822"
        }
      ],
      "source": "secure@microsoft.com",
      "type": "Primary"
    }
  ]
}


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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.