Use-after-free in the JavaScript Engine component. This vulnerability affects Firefox < 149 and Thunderbird < 149.
Metrics
Affected Vendors & Products
References
History
Wed, 25 Mar 2026 20:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Wed, 25 Mar 2026 12:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-825 | |
| References |
| |
| Metrics |
threat_severity
|
threat_severity
|
Tue, 24 Mar 2026 20:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Use-after-free in the JavaScript Engine component. This vulnerability affects Firefox < 149. | Use-after-free in the JavaScript Engine component. This vulnerability affects Firefox < 149 and Thunderbird < 149. |
| References |
|
Tue, 24 Mar 2026 19:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Mozilla
Mozilla firefox |
|
| Weaknesses | CWE-416 | |
| CPEs | cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:* | |
| Vendors & Products |
Mozilla
Mozilla firefox |
|
| Metrics |
cvssV3_1
|
Tue, 24 Mar 2026 12:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Use-after-free in the JavaScript Engine component. This vulnerability affects Firefox < 149. | |
| Title | Use-after-free in the JavaScript Engine component | |
| References |
|
Status: PUBLISHED
Assigner: mozilla
Published: 2026-03-24T12:30:31.266Z
Updated: 2026-03-25T19:50:09.415Z
Reserved: 2026-03-23T23:22:44.920Z
Link: CVE-2026-4723
Updated: 2026-03-25T19:47:50.233Z
Status : Modified
Published: 2026-03-24T13:16:08.190
Modified: 2026-03-25T20:16:37.603
Link: CVE-2026-4723