Bug 2374562 (CVE-2025-6425) - CVE-2025-6425 firefox: thunderbird: The WebCompat WebExtension shipped with Firefox exposed a persistent UUID
Summary: CVE-2025-6425 firefox: thunderbird: The WebCompat WebExtension shipped with F...
Keywords:
Status: NEW
Alias: CVE-2025-6425
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-06-24 13:01 UTC by OSIDB Bzimport
Modified: 2025-09-01 08:28 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2025:10072 0 None None None 2025-07-01 22:06:46 UTC
Red Hat Product Errata RHSA-2025:10073 0 None None None 2025-07-01 21:22:20 UTC
Red Hat Product Errata RHSA-2025:10074 0 None None None 2025-07-01 12:02:45 UTC
Red Hat Product Errata RHSA-2025:10181 0 None None None 2025-07-02 05:17:00 UTC
Red Hat Product Errata RHSA-2025:10182 0 None None None 2025-07-02 05:10:55 UTC
Red Hat Product Errata RHSA-2025:10183 0 None None None 2025-07-02 05:27:44 UTC
Red Hat Product Errata RHSA-2025:10184 0 None None None 2025-07-02 05:25:22 UTC
Red Hat Product Errata RHSA-2025:10185 0 None None None 2025-07-02 05:38:10 UTC
Red Hat Product Errata RHSA-2025:10186 0 None None None 2025-07-02 05:42:23 UTC
Red Hat Product Errata RHSA-2025:10187 0 None None None 2025-07-02 05:28:11 UTC
Red Hat Product Errata RHSA-2025:10188 0 None None None 2025-07-02 06:08:56 UTC

Description OSIDB Bzimport 2025-06-24 13:01:37 UTC 
An attacker who enumerated resources from the WebCompat extension could have obtained a persistent UUID that identified the browser, and persisted between containers and normal/private browsing mode, but not profiles. This vulnerability affects Firefox < 140, Firefox ESR < 115.25, and Firefox ESR < 128.12.
Comment 1 errata-xmlrpc 2025-07-01 12:02:44 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2025:10074 https://access.redhat.com/errata/RHSA-2025:10074
Comment 2 errata-xmlrpc 2025-07-01 21:22:19 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2025:10073 https://access.redhat.com/errata/RHSA-2025:10073
Comment 3 errata-xmlrpc 2025-07-01 22:06:44 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:10072 https://access.redhat.com/errata/RHSA-2025:10072
Comment 4 errata-xmlrpc 2025-07-02 05:10:53 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.2 Advanced Update Support

Via RHSA-2025:10182 https://access.redhat.com/errata/RHSA-2025:10182
Comment 5 errata-xmlrpc 2025-07-02 05:16:59 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7 Extended Lifecycle Support

Via RHSA-2025:10181 https://access.redhat.com/errata/RHSA-2025:10181
Comment 6 errata-xmlrpc 2025-07-02 05:25:20 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support

Via RHSA-2025:10184 https://access.redhat.com/errata/RHSA-2025:10184
Comment 7 errata-xmlrpc 2025-07-02 05:27:42 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.6 Telecommunications Update Service

Via RHSA-2025:10183 https://access.redhat.com/errata/RHSA-2025:10183
Comment 8 errata-xmlrpc 2025-07-02 05:28:10 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions

Via RHSA-2025:10187 https://access.redhat.com/errata/RHSA-2025:10187
Comment 9 errata-xmlrpc 2025-07-02 05:38:08 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2025:10185 https://access.redhat.com/errata/RHSA-2025:10185
Comment 10 errata-xmlrpc 2025-07-02 05:42:22 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.8 Telecommunications Update Service

Via RHSA-2025:10186 https://access.redhat.com/errata/RHSA-2025:10186
Comment 11 errata-xmlrpc 2025-07-02 06:08:55 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Extended Update Support

Via RHSA-2025:10188 https://access.redhat.com/errata/RHSA-2025:10188
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