Home/CVE/When a URL was provided in a link querystring parameter, Firefox for Android would follow that URL instead of the correc
CVE

CVE-2025-6428

When a URL was provided in a link querystring parameter, Firefox for Android would follow that URL instead of the correc

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.

MEDIUM · CVSS 4.3 EPSS 0.00177
Schedule remediation
  • Public exploit or PoC is available
Sigma rules1 YARA rules0
⬡

Weakness Classification

CWE-601URL Redirection to Untrusted Site ('Open Redirect')
▤

Affected Products & Versions

1
mozilla firefox< 140.0
⚠

Public Exploits & PoCs

1
pocbugzilla.mozilla.org · show_bug.cgi?id=1970151bugzilla.mozilla.org
◈

Sigma Hunt Rules

1
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighSQLite Firefox Profile Data DB Access
▣

Scoring & Timeline

4.3
MEDIUM · CVSS v3.1 · security@mozilla.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD24 Jun 2025 · 01:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

5
suse-csafSUSE-SU-2025:02529-1
suse-csafopenSUSE-SU-2025:15371-1
suse-csafSUSE-SU-2025:02339-1
suse-csafopenSUSE-SU-2025:15325-1
mozilla-mfsaMFSA2025-51
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.mozilla.org/security/advisories/mfsa2025-51/Vendor Advisory
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