PT-2025-31712 · Mozilla · Firefox For Ios

Narendra Bhati · Published 2025-07-22 · Updated 2025-08-20 · CVE-2025-54143

Positive Technologies (AI Summary)

CVSS v3.1

10

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: Firefox for iOS versions prior to 141

Description: Sandboxed iframes on webpages could potentially allow downloads to the device, bypassing the expected sandbox restrictions declared on the parent page.

Recommendations: Update Firefox for iOS to version 141 or later.

Fix

Protection Mechanism Failure

Weakness Enumeration

CWE-693

Related Identifiers

BDU:2025-10499

CVE-2025-54143

Affected Products

Firefox For Ios

References · 11

• https://osv.dev/vulnerability/UBUNTU-CVE-2025-54143 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-54143 · Security Note
• https://mozilla.org/en-US/security/advisories/mfsa2025-60 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2025-54143 · Security Note
• https://mozilla.org/security/advisories/mfsa2025-60 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-10499 · Security Note
• https://ubuntu.com/security/CVE-2025-54143 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-54143 · Vendor Advisory
• https://twitter.com/CVEnew/status/1957914215986950564 · Twitter Post
• https://bugzilla.mozilla.org/show_bug.cgi?id=1912671 · Note
• https://twitter.com/VulmonFeeds/status/1958053791518916641 · Twitter Post