CVE-2025-4215
ublock-origin - security update
Description
A vulnerability was found in gorhill uBlock Origin up to 1.63.3b16. It has been classified as problematic. Affected is the function currentStateChanged of the file src/js/1p-filters.js of the component UI. The manipulation leads to inefficient regular expression complexity. It is possible to launch the attack remotely. The complexity of an attack is rather high. The exploitability is told to be difficult. The exploit has been disclosed to the public and may be used. Upgrading to version 1.63.3b17 is able to address this issue. The patch is identified as eaedaf5b10d2f7857c6b77fbf7d4a80681d4d46c. It is recommended to upgrade the affected component.
How to fix CVE-2025-4215
To remediate CVE-2025-4215, upgrade the affected package to a fixed version below.
- —upgrade to 1.62.0+dfsg-0+deb11u1 or later
- —upgrade to 1.62.0+dfsg-0+deb11u1 or later
Is CVE-2025-4215 being exploited?
Low — EPSS is 0.6%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 1.62.0+dfsg-0+deb11u1
- from 0, < 1.62.0+dfsg-0+deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | LOW3.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L |