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CVE-2026-33822

Estado: AnalizadaMedia (6.1)—

Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information locally.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (2)

Microsoft — 365 AppsMicrosoft — Office Long Term Servicing Channel

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-33822",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-33822",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-04-14T19:29:46.995474Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "secure@microsoft.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.1,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 4.2,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "secure@microsoft.com",
      "affectedData": [
        {
          "vendor": "Microsoft",
          "product": "Microsoft 365 Apps for Enterprise",
          "versions": [
            {
              "status": "affected",
              "version": "16.0.1",
              "lessThan": "https://aka.ms/OfficeSecurityReleases",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "32-bit Systems",
            "x64-based Systems"
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft Office LTSC for Mac 2021",
          "versions": [
            {
              "status": "affected",
              "version": "16.0.1",
              "lessThan": "16.108.26041219",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft Office LTSC for Mac 2024",
          "versions": [
            {
              "status": "affected",
              "version": "16.0.0",
              "lessThan": "16.108.26041219",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-04-14T18:17:34.590",
  "references": [
    {
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33822",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secure@microsoft.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "secure@microsoft.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information locally."
    },
    {
      "lang": "es",
      "value": "Lectura fuera de límites en Microsoft Office Word permite a un atacante no autorizado divulgar información localmente."
    }
  ],
  "lastModified": "2026-07-24T22:10:00.140",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x64:*",
              "vulnerable": true,
              "matchCriteriaId": "3259EBFE-AE2D-48B8-BE9A-E22BBDB31378"
            },
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              "vulnerable": true,
              "matchCriteriaId": "CD25F492-9272-4836-832C-8439EBE64CCF"
            },
            {
              "criteria": "cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:macos:*:*",
              "vulnerable": true,
              "matchCriteriaId": "BF0E8112-5B6F-4E55-8E40-38ADCF6FC654"
            },
            {
              "criteria": "cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:*:*:*:*:macos:*:*",
              "vulnerable": true,
              "matchCriteriaId": "EF3E56B5-E6A6-4061-9380-D421E52B9199"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "secure@microsoft.com"
}