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CVE-2025-6428

Status: ModifiedMedium (4.3)—

When a URL was provided in a link querystring parameter, Firefox for Android would follow that URL instead of the correct URL, potentially leading to phishing attacks. *This bug only affects Firefox for Android. Other versions of Firefox are unaffected.*. This vulnerability was fixed in Firefox 140.

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 (1)

Mozilla — Firefox

CWEs

References

Raw JSON (NVD)

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  "id": "CVE-2025-6428",
  "cveTags": [],
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          "version": "2.0.3",
          "timestamp": "2025-06-25T14:20:42.338589Z"
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  "published": "2025-06-24T13:15:23.770",
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    },
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    }
  ],
  "lastModified": "2026-09-30T18:10:00.190",
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