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CVE-2026-42835

Estado: AnalizadaAlta (8.1)—

Improper neutralization of special elements in output used by a downstream component ('injection') in Microsoft Teams for Android allows an authorized attacker to disclose information over a network.

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

AV:N, PR:L: requiere privilegios de red adyacente (T1210). CWE-74 (injection) en Teams Android permite divulgar información; T1005 (datos locales) y T1552.007 (credenciales en caché).

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Privileged Account ManagementNetwork SegmentationVulnerability ScanningUser Account ManagementThreat Intelligence ProgramLimit Access to Resource Over Network

Tecnologías afectadas (1)

Microsoft — Teams

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2026-42835",
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          "role": "CISA Coordinator",
          "options": [
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            },
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            },
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              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-06-10T12:31:07.373821Z"
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          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
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          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.2,
        "exploitabilityScore": 2.8
      }
    ]
  },
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      "affectedData": [
        {
          "vendor": "Microsoft",
          "product": "Microsoft Teams for Android",
          "versions": [
            {
              "status": "affected",
              "version": "1.0.0",
              "lessThan": "1.0.76.2026111302",
              "versionType": "custom"
            }
          ]
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      ]
    }
  ],
  "published": "2026-06-09T17:17:09.140",
  "references": [
    {
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42835",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secure@microsoft.com"
    }
  ],
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  "weaknesses": [
    {
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      "source": "secure@microsoft.com",
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        }
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    },
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      "value": "Neutralización incorrecta de elementos especiales en la salida utilizados por un componente descendente ('inyección') en Microsoft Teams para Android permite a un atacante autorizado divulgar información a través de una red."
    }
  ],
  "lastModified": "2026-07-23T08:10:00.137",
  "configurations": [
    {
      "nodes": [
        {
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          "cpeMatch": [
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  "sourceIdentifier": "secure@microsoft.com"
}