Memory safety bugs present in Firefox 138 and Thunderbird 138. 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 < 139 and Thunderbird < 139.
                
            Metrics
Affected Vendors & Products
References
        History
                    Thu, 30 Oct 2025 16:30:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| Title | firefox: Memory safety bugs | Memory safety bugs fixed in Firefox 139 and Thunderbird 139 | 
Wed, 11 Jun 2025 12:15:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| Description | Memory safety bugs present in Firefox 138 and Thunderbird 138. 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 < 139. | Memory safety bugs present in Firefox 138 and Thunderbird 138. 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 < 139 and Thunderbird < 139. | 
| References |  | 
Wed, 28 May 2025 19:00:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| First Time appeared | Mozilla Mozilla firefox Mozilla thunderbird | |
| CPEs | cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* | |
| Vendors & Products | Mozilla Mozilla firefox Mozilla thunderbird | 
Wed, 28 May 2025 14:45:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| Title | firefox: Memory safety bugs | |
| Weaknesses | CWE-119 | |
| References |  | |
| Metrics | threat_severity 
 | threat_severity 
 | 
Tue, 27 May 2025 15:15:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| Weaknesses | CWE-787 | |
| Metrics | cvssV3_1 
 
 | 
Tue, 27 May 2025 12:45:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| Description | Memory safety bugs present in Firefox 138 and Thunderbird 138. 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 < 139. | |
| References |  | 
 MITRE
                        MITRE
                    Status: PUBLISHED
Assigner: mozilla
Published: 2025-05-27T12:29:30.199Z
Updated: 2025-10-30T16:13:15.534Z
Reserved: 2025-05-27T12:29:29.796Z
Link: CVE-2025-5272
 Vulnrichment
                        Vulnrichment
                    Updated: 2025-05-27T15:05:43.847Z
 NVD
                        NVD
                    Status : Modified
Published: 2025-05-27T13:15:23.023
Modified: 2025-06-11T12:15:28.840
Link: CVE-2025-5272
 Redhat
                        Redhat