FKIE_CVE-2025-6431

Vulnerability from fkie_nvd - Published: 2025-06-24 13:15 - Updated: 2025-07-03 16:04
Severity ?
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Summary
When a link can be opened in an external application, Firefox for Android will, by default, prompt the user before doing so. An attacker could have bypassed this prompt, potentially exposing the user to security vulnerabilities or privacy leaks in external applications. *This bug only affects Firefox for Android. Other versions of Firefox are unaffected.* This vulnerability affects Firefox < 140.
References
security@mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1942716Permissions Required
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2025-51/Vendor Advisory
Impacted products
Vendor Product Version
mozilla firefox *
google android -
To clipboard 

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    {
      "nodes": [
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              "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*",
              "matchCriteriaId": "77D2BF2A-26A3-4664-93B5-B41BCF17AC9E",
              "versionEndExcluding": "140.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
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              "criteria": "cpe:2.3:o:google:android:-:*:*:*:*:*:*:*",
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "When a link can be opened in an external application, Firefox for Android will, by default, prompt the user before doing so. An attacker could have bypassed this prompt, potentially exposing the user to security vulnerabilities or privacy leaks in external applications. \n*This bug only affects Firefox for Android. Other versions of Firefox are unaffected.* This vulnerability affects Firefox \u003c 140."
    },
    {
      "lang": "es",
      "value": "Cuando se puede abrir un enlace en una aplicaci\u00f3n externa, Firefox para Android, por defecto, pregunta al usuario antes de hacerlo. Un atacante podr\u00eda haber omitido esta pregunta, exponiendo al usuario a vulnerabilidades de seguridad o filtraciones de privacidad en aplicaciones externas. *Este error solo afecta a Firefox para Android. Las dem\u00e1s versiones de Firefox no se ven afectadas.* Esta vulnerabilidad afecta a Firefox anteriores a la versi\u00f3n 140."
    }
  ],
  "id": "CVE-2025-6431",
  "lastModified": "2025-07-03T16:04:21.163",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
          "version": "3.1"
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        "impactScore": 3.6,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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  "published": "2025-06-24T13:15:24.103",
  "references": [
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      "source": "security@mozilla.org",
      "tags": [
        "Permissions Required"
      ],
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1942716"
    },
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      "source": "security@mozilla.org",
      "tags": [
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      "url": "https://www.mozilla.org/security/advisories/mfsa2025-51/"
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  "sourceIdentifier": "security@mozilla.org",
  "vulnStatus": "Analyzed",
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          "value": "CWE-285"
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}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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