CVE-2025-0238 Details
Description
Assuming a controlled failed memory allocation, an attacker could have caused a use-after-free, leading to a potentially exploitable crash. This vulnerability was fixed in Firefox 134, Firefox ESR 128.6, Firefox ESR 115.19, Thunderbird 134, and Thunderbird 128.6.
A use-after-free vulnerability has been identified in Mozilla Firefox and Thunderbird. This issue arises when lines of text are broken, assuming a controlled failed memory allocation, which can lead to a potentially exploitable crash. The vulnerability is present in Firefox versions prior to 134, Firefox ESR versions prior to 128.6 and 115.19, as well as Thunderbird versions prior to 134 and 128.6.
Users can upgrade to Firefox 134, Thunderbird 134, Firefox ESR 128.6, or Thunderbird ESR 128.6 to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jan 8, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://lists.debian.org/debian-lts-announce/2025/01/msg00004.html | CVE | |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1915535 | [email protected] | Issue TrackingPermissions Required |
| https://www.mozilla.org/security/advisories/mfsa2025-01/ | [email protected] | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2025-02/ | [email protected] | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2025-03/ | [email protected] | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2025-04/ | [email protected] | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2025-05/ | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-416 | Use After Free | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| mozilla firefox | < 115.19.0 < 134.0 >= 116.0, < 128.6.0 |
CPE
Remediation
| |
| mozilla thunderbird | < 128.6 >= 129.0, < 134.0 |
CPE
Remediation
| |
Change History
9 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 13, 2026 | CVE Modified | [email protected] |
| Nov 3, 2025 | CVE Modified | CVE |
| Apr 3, 2025 | Initial Analysis | [email protected] |
| Jan 13, 2025 | CVE Modified | [email protected] |
| Jan 9, 2025 | CVE Modified | [email protected] |
| Jan 8, 2025 | CVE Modified | CISA-ADP |
| Jan 7, 2025 | New CVE Received | [email protected] |