← Back to CVE Explorer

CVE-2026-69806

Full vulnerability record from the local CVENow database.

Description

Exposure of sensitive information to an unauthorized actor in .NET allows an authorized attacker to elevate privileges locally.

Severity
HIGH
CVSS score
7.0 (v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-09-08 18:19:52.190000
Last modified
2026-10-30 22:17:53.740000
View original CVE JSON
{
  "id": "CVE-2026-69806",
  "sourceIdentifier": "[email protected]",
  "published": "2026-09-08T18:19:52.190",
  "lastModified": "2026-10-30T22:17:53.740",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Exposure of sensitive information to an unauthorized actor in .NET allows an authorized attacker to elevate privileges locally."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Microsoft",
          "product": ".NET 10.0 runtime",
          "versions": [
            {
              "version": "10.0.0",
              "lessThan": "10.0.12",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": ".NET 11.0 runtime",
          "versions": [
            {
              "version": "11.0.0",
              "lessThan": "11.0 RC1",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": ".NET 9.0 runtime",
          "versions": [
            {
              "version": "9.0.0",
              "lessThan": "9.0.20",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft Visual Studio 2022 version 17.14",
          "versions": [
            {
              "version": "17.14.0",
              "lessThan": "17.14.40",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft Visual Studio 2026 version 18.9",
          "versions": [
            {
              "version": "18.9.0",
              "lessThan": "18.9.3",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 7.0,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "HIGH",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.0,
        "impactScore": 5.9
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-09-10T18:26:08.285062Z",
          "id": "CVE-2026-69806",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-94"
        },
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ]
    }
  ],
  "configurations": [
    {
      "operator": "AND",
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "9.0.0",
              "versionEndExcluding": "9.0.20",
              "matchCriteriaId": "40FA0BC2-46E4-425A-941B-B042FA960EDF"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "10.0.0",
              "versionEndExcluding": "10.0.12",
              "matchCriteriaId": "C3766C06-8F63-4266-AA40-E8DCC9A87F01"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:microsoft:.net:11.0.0:preview1:*:*:*:*:*:*",
              "matchCriteriaId": "5DACF2FE-CF61-43E4-8A3F-F7A358DE8A01"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:microsoft:.net:11.0.0:preview2:*:*:*:*:*:*",
              "matchCriteriaId": "280B2E64-3163-40AB-A048-14D58DEC42FD"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:microsoft:.net:11.0.0:preview3:*:*:*:*:*:*",
              "matchCriteriaId": "12357908-3294-46EF-85A0-DA3F86C97489"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:microsoft:.net:11.0.0:preview4:*:*:*:*:*:*",
              "matchCriteriaId": "849FC8F5-86CD-4B5D-ADFD-9CB16EA75D09"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:microsoft:.net:11.0.0:preview5:*:*:*:*:*:*",
              "matchCriteriaId": "C86E87E2-B236-4AC9-B6C3-64B9CDEC91EB"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:microsoft:.net:11.0.0:preview7:*:*:*:*:*:*",
              "matchCriteriaId": "E09C9DB3-F42C-4442-9CF0-24A780D094C8"
            }
          ]
        },
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": false,
              "criteria": "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "703AF700-7A70-47E2-BC3A-7FD03B3CA9C1"
            }
          ]
        }
      ]
    },
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "17.14.0",
              "versionEndExcluding": "17.14.40",
              "matchCriteriaId": "8FD99987-130F-47E5-B6FE-9C6701D7C3F5"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:microsoft:visual_studio_2026:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "18.9.0",
              "versionEndExcluding": "18.9.3",
              "matchCriteriaId": "C66064BF-3349-43FF-8A22-9370663193DE"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69806",
      "source": "[email protected]",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ]
    }
  ]
}