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CVE-2021-41093

Estado: ModificadaCrítica (9.8)—

Wire is an open source secure messenger. In affected versions if the an attacker gets an old but valid access token they can take over an account by changing the email. This issue has been resolved in version 3.86 which uses a new endpoint which additionally requires an authentication cookie. See wire-ios-sync-engine and wire-ios-transport references. This is the root advisory that pulls the changes together.

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 (1)

Wire — Wire

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-41093",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.4,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.2,
        "exploitabilityScore": 2.2
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "wireapp",
          "product": "wire-ios",
          "versions": [
            {
              "status": "affected",
              "version": "< 3.86"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-10-04T19:15:08.203",
  "references": [
    {
      "url": "https://github.com/wireapp/wire-ios-sync-engine/security/advisories/GHSA-w727-5f74-49xj",
      "tags": [
        "Broken Link"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/wireapp/wire-ios-transport/security/advisories/GHSA-p354-6r3m-g4xr",
      "tags": [
        "Broken Link"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/wireapp/wire-ios/commit/b0e7bb3b13dd8212032cb46e32edf701694687c7",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/wireapp/wire-ios/security/advisories/GHSA-6f4c-phfj-m255",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/wireapp/wire-server/security/advisories/GHSA-9rm2-w6pq-333m",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/wireapp/wire-ios-sync-engine/security/advisories/GHSA-w727-5f74-49xj",
      "tags": [
        "Broken Link"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/wireapp/wire-ios-transport/security/advisories/GHSA-p354-6r3m-g4xr",
      "tags": [
        "Broken Link"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/wireapp/wire-ios/commit/b0e7bb3b13dd8212032cb46e32edf701694687c7",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/wireapp/wire-ios/security/advisories/GHSA-6f4c-phfj-m255",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/wireapp/wire-server/security/advisories/GHSA-9rm2-w6pq-333m",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-285"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Wire is an open source secure messenger. In affected versions if the an attacker gets an old but valid access token they can take over an account by changing the email. This issue has been resolved in version 3.86 which uses a new endpoint which additionally requires an authentication cookie. See wire-ios-sync-engine and wire-ios-transport references. This is the root advisory that pulls the changes together."
    },
    {
      "lang": "es",
      "value": "Wire es una mensajería segura de código abierto. En las versiones afectadas, si un atacante consigue un token de acceso antiguo pero válido, puede hacerse con una cuenta al cambiar el correo electrónico. Este problema ha sido resuelto en la versión 3.86, que usa un nuevo endpoint que requiere adicionalmente una cookie de autenticación. Ver las referencias wire-ios-sync-engine y wire-ios-transport. Este es el aviso root que reúne los cambios"
    }
  ],
  "lastModified": "2026-06-17T04:07:51.693",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:wire:wire:*:*:*:*:*:iphone_os:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3CFFCDE1-A356-44F0-8BBB-2A1E6681620C",
              "versionEndExcluding": "3.86"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security-advisories@github.com"
}