Cloud Vulnerability DB
An open project to list all known cloud vulnerabilities and Cloud Service Provider security issues
Vulnerability DatabaseCVE-2025-1019
CVE-2025-1019:
NixOS vulnerability analysis and mitigation
Overview
A vulnerability was discovered in Mozilla Firefox and Thunderbird versions prior to 135 where the z-order of browser windows could be manipulated to hide the fullscreen notification. The vulnerability (CVE-2025-1019) was reported by Irvan Kurniawan and disclosed on February 4, 2025 (Mozilla Advisory).
Technical details
The vulnerability is classified as CWE-1021 (Improper Restriction of Rendered UI Layers or Frames). It received a CVSS v3.1 base score of 4.3 (Medium) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N, indicating that it can be exploited remotely with low attack complexity, requires user interaction, and has low impact on integrity (NVD).
Impact
The vulnerability could potentially be leveraged to perform a spoofing attack by manipulating the browser window layers to hide the fullscreen notification from users (Mozilla Advisory, Red Hat).
Mitigation and workarounds
The vulnerability has been fixed in Firefox 135 and Thunderbird 135. Users are advised to upgrade to these versions or later to mitigate the risk (Mozilla Advisory).
Additional resources
Source: This report was generated using AI
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