Medium severity · published Jul 13, 2026
CVE-2026-14906
Malicious webpage titles could allow overwriting of bundled PDF resources when saving webpages as PDFs in Firefox for iOS
5.3
CVSS
0.3%
EPSS
No
On KEV
Description
Pages with malicious titles could potentially allow saved PDF content to overwrite PDF files or bundled content within the Firefox for iOS application sandbox. This vulnerability was fixed in Firefox for iOS 152.4.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 22% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FM
Firefox Mobile · Mozilla
before 152.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-14906
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-14906
Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=2045842
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-66/
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