CVE-2025-54145: 
NixOS vulnerability analysis and mitigation

CVE-2025-54145 is a security vulnerability discovered in Firefox for iOS affecting versions prior to 141. The vulnerability was disclosed on July 22, 2025, and was reported by James Lee. The issue affects the QR code scanner functionality in Firefox for iOS, which could allow arbitrary websites to be opened if a user was tricked into scanning a malicious link that leveraged Firefox's open-text URL scheme (Mozilla Advisory, NVD).

The vulnerability is classified with a CVSS v3.1 base score of 9.1 (Critical) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N. The technical assessment indicates that the vulnerability requires no privileges or user interaction, has network attack vector accessibility, and can potentially impact both confidentiality and integrity at high levels (AttackerKB).

The vulnerability could allow attackers to redirect users to arbitrary websites through the QR code scanner functionality. This could potentially lead to phishing attacks or other malicious website redirections, compromising user security and privacy (Mozilla Advisory).

Users are advised to update to Firefox for iOS version 141 or later, which contains the fix for this vulnerability. Mozilla has addressed the issue in the security update released on July 22, 2025 (Mozilla Advisory).