Memory safety bugs present in Firefox ESR 140.5, Thunderbird ESR 140.5, Firefox 145 and Thunderbird 145. 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 146, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6.
References
| Link | Resource |
|---|---|
| https://bugzilla.mozilla.org/buglist.cgi?bug_id=1966501%2C1997639 | Broken Link Issue Tracking |
| https://www.mozilla.org/security/advisories/mfsa2025-92/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2025-94/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2025-95/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2025-96/ | Vendor Advisory |
Configurations
Configuration 1 (hide)
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History
13 Apr 2026, 15:16
| Type | Values Removed | Values Added |
|---|---|---|
| Summary | (en) Memory safety bugs present in Firefox ESR 140.5, Thunderbird ESR 140.5, Firefox 145 and Thunderbird 145. 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 146, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6. |
13 Jan 2026, 18:16
| Type | Values Removed | Values Added |
|---|---|---|
| CWE | CWE-119 |
10 Dec 2025, 20:10
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://bugzilla.mozilla.org/buglist.cgi?bug_id=1966501%2C1997639 - Broken Link, Issue Tracking | |
| References | () https://www.mozilla.org/security/advisories/mfsa2025-92/ - Vendor Advisory | |
| References | () https://www.mozilla.org/security/advisories/mfsa2025-94/ - Vendor Advisory | |
| References | () https://www.mozilla.org/security/advisories/mfsa2025-95/ - Vendor Advisory | |
| References | () https://www.mozilla.org/security/advisories/mfsa2025-96/ - Vendor Advisory | |
| CPE | cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:* cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:* cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:* |
|
| First Time |
Mozilla
Mozilla firefox Mozilla thunderbird |
|
| CWE | CWE-787 |
10 Dec 2025, 15:15
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
|
| Summary | (en) Memory safety bugs present in Firefox ESR 140.5, Thunderbird ESR 140.5, Firefox 145 and Thunderbird 145. 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 affects Firefox < 146, Firefox ESR < 140.6, Thunderbird < 146, and Thunderbird < 140.6. |
09 Dec 2025, 16:17
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-12-09 16:17
Updated : 2026-04-13 15:16
NVD link : CVE-2025-14333
Mitre link : CVE-2025-14333
CVE.ORG link : CVE-2025-14333
JSON object : View
Products Affected
mozilla
- firefox
- thunderbird