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VULNERABILITIES

CVE-2025-4083 Details

Description

A process isolation vulnerability in Thunderbird stemmed from improper handling of javascript: URIs, which could allow content to execute in the top-level document's process instead of the intended frame, potentially enabling a sandbox escape. This vulnerability was fixed in Firefox 138, Firefox ESR 128.10, Firefox ESR 115.23, Thunderbird 138, and Thunderbird 128.10.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: CISA-ADPCVSS-B:9.1 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://lists.debian.org/debian-lts-announce/2025/05/msg00024.html CVE
https://bugzilla.mozilla.org/show_bug.cgi?id=1958350 [email protected]Permissions Required
https://www.mozilla.org/security/advisories/mfsa2025-28/ [email protected]Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-29/ [email protected]Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-30/ [email protected]Vendor Advisory

see all 7 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-653Improper Isolation or CompartmentalizationCISA-ADP

Affected Products

ProductVersions
mozilla firefox
< 115.23
< 138.0
>= 128.0, < 128.10

CPE

  • cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*

Remediation

  • No remediation found in references.
mozilla thunderbird
< 128.10.0
< 138.0

CPE

  • cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*
  • cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*

Remediation

  • No remediation found in references.

Change History

8 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2025-4083
NVD Published Date:
Apr 29, 2025
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2025-4083 Details - Not Deferred