CVE-2025-0242
MEDIUM EPSS 95.9%
Published Jan 7, 20251y ago · Modified Jun 17, 20261w ago
6.5 CVSS 3.1
Published Jan 7, 2025 1y ago
Last Modified Jun 17, 2026 1w ago
Description
Memory safety bugs present in Firefox 133, Thunderbird 133, Firefox ESR 115.18, Firefox ESR 128.5, Thunderbird 115.18, and Thunderbird 128.5. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 134, Firefox ESR 128.6, Firefox ESR 115.19, Thunderbird 134, and Thunderbird 128.6.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity Low
Availability None
Threat Intelligence
EPSS Exploit Probability
95.9% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-787 Out-of-bounds Write Memory Safety
Affected Products 5
References 7
- bugzilla.mozilla.org https://bugzilla.mozilla.org/buglist.cgi?bug_id=1874523%2C1926454%2C1931873%2C1932169
- lists.debian.org https://lists.debian.org/debian-lts-announce/2025/01/msg00004.html
- mozilla.org https://www.mozilla.org/security/advisories/mfsa2025-01/
- mozilla.org https://www.mozilla.org/security/advisories/mfsa2025-02/
- mozilla.org https://www.mozilla.org/security/advisories/mfsa2025-03/
- mozilla.org https://www.mozilla.org/security/advisories/mfsa2025-04/
- mozilla.org https://www.mozilla.org/security/advisories/mfsa2025-05/
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.