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CVE-2018-0791

Status: ModifiedHigh (7.8)—

Microsoft Outlook 2007, Microsoft Outlook 2010, Microsoft Outlook 2013, and Microsoft Outlook 2016 allow a remote code execution vulnerability due to the way email messages are parsed, aka "Microsoft Outlook Remote Code Execution Vulnerability". This CVE is unique from CVE-2018-0793.

CVSS

Exploitation probability (EPSS)

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).

Affected technologies (2)

Microsoft — OfficeMicrosoft — Outlook

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2018-0791",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 9.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "secure@microsoft.com",
      "affectedData": [
        {
          "vendor": "Microsoft Corporation",
          "product": "Microsoft Outlook",
          "versions": [
            {
              "status": "affected",
              "version": "Microsoft Outlook 2007, Microsoft Outlook 2010, Microsoft Outlook 2013, and Microsoft Outlook 2016"
            }
          ]
        }
      ]
    }
  ],
  "published": "2018-01-10T01:29:00.430",
  "references": [
    {
      "url": "http://www.securityfocus.com/bid/102383",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.securitytracker.com/id/1040154",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0791",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/102383",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id/1040154",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0791",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Microsoft Outlook 2007, Microsoft Outlook 2010, Microsoft Outlook 2013, and Microsoft Outlook 2016 allow a remote code execution vulnerability due to the way email messages are parsed, aka \"Microsoft Outlook Remote Code Execution Vulnerability\". This CVE is unique from CVE-2018-0793."
    },
    {
      "lang": "es",
      "value": "Microsoft Outlook 2007, Microsoft Outlook 2010, Microsoft Outlook 2013 y Microsoft Outlook 2016 permiten una vulnerabilidad de ejecución remota de código debido a la forma en la que se analizan los mensajes de email. Esto también se conoce como \"Microsoft Outlook Remote Code Execution Vulnerability\". Este CVE es diferente de CVE-2018-0793."
    }
  ],
  "lastModified": "2026-06-17T01:31:40.000",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:microsoft:office:2016:c2r:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7B1DD13C-1F8C-4583-B267-36907732F2C1"
            },
            {
              "criteria": "cpe:2.3:a:microsoft:outlook:2007:sp3:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "8B32CD31-398A-4078-8B5B-B39DB9DB9A35"
            },
            {
              "criteria": "cpe:2.3:a:microsoft:outlook:2010:sp2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F9A115C1-45EB-4688-AD7C-C1854850EE9B"
            },
            {
              "criteria": "cpe:2.3:a:microsoft:outlook:2013:sp1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D7B6DF1E-0DDA-4809-B216-7CEFE0A53E2B"
            },
            {
              "criteria": "cpe:2.3:a:microsoft:outlook:2013:sp1:*:*:rt:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "DDA98A76-D0D1-4BFA-BEAC-1C2313F7B859"
            },
            {
              "criteria": "cpe:2.3:a:microsoft:outlook:2016:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E2B1657C-0FF4-461A-BE2A-641275C4B0A0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "secure@microsoft.com"
}