FKIE_CVE-2019-1449

Vulnerability from fkie_nvd - Published: 2019-11-12 19:15 - Updated: 2026-06-17 02:28
Severity
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
A security feature bypass vulnerability exists in the way that Office Click-to-Run (C2R) components handle a specially crafted file, which could lead to a standard user, any AppContainer sandbox, and Office LPAC Protected View to escalate privileges to SYSTEM.To exploit this bug, an attacker would have to run a specially crafted file, aka 'Microsoft Office ClickToRun Security Feature Bypass Vulnerability'.
References
secure@microsoft.comhttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1449Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1449Patch, Vendor Advisory
Impacted products
Vendor Product Version
microsoft office 2019
microsoft office_365_proplus -
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Microsoft Office",
          "vendor": "Microsoft",
          "versions": [
            {
              "status": "affected",
              "version": "2019 for 32-bit editions"
            },
            {
              "status": "affected",
              "version": "2019 for 64-bit editions"
            }
          ]
        },
        {
          "product": "Office 365 ProPlus",
          "vendor": "Microsoft",
          "versions": [
            {
              "status": "affected",
              "version": "32-bit Systems"
            },
            {
              "status": "affected",
              "version": "64-bit Systems"
            }
          ]
        }
      ],
      "source": "secure@microsoft.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:*:*",
              "matchCriteriaId": "FF177984-A906-43FA-BF60-298133FBBD6B",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:microsoft:office_365_proplus:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "CA035812-F35A-43F1-9A8D-EE02201AA10A",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A security feature bypass vulnerability exists in the way that Office Click-to-Run (C2R) components handle a specially crafted file, which could lead to a standard user, any AppContainer sandbox, and Office LPAC Protected View to escalate privileges to SYSTEM.To exploit this bug, an attacker would have to run a specially crafted file, aka \u0027Microsoft Office ClickToRun Security Feature Bypass Vulnerability\u0027."
    },
    {
      "lang": "es",
      "value": "Se presenta una vulnerabilidad de omisi\u00f3n de la caracter\u00edstica de seguridad en la manera en que los componentes Click-to-Run (C2R) de Office manejan un archivo especialmente dise\u00f1ado, lo que podr\u00eda conllevar a un usuario est\u00e1ndar, de cualquier sandbox de AppContainer y Office LPAC Protected View, escale privilegios a SYSTEM. Para aprovechar este error, un atacante tendr\u00eda que ejecutar un archivo especialmente dise\u00f1ado, tambi\u00e9n se conoce como \"Microsoft Office ClickToRun Security Feature Bypass Vulnerability\"."
    }
  ],
  "id": "CVE-2019-1449",
  "lastModified": "2026-06-17T02:28:38.110",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 10.0,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 10.0,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2019-11-12T19:15:16.020",
  "references": [
    {
      "source": "secure@microsoft.com",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1449"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1449"
    }
  ],
  "sourceIdentifier": "secure@microsoft.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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