CVE-2026-12321
MEDIUM
5.4
CVSS 3.1
Description
JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 152 and Thunderbird 152.
Metadata
Severity & Metrics
5.4
MEDIUM CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
SSVC — CISA Coordinator
Affected products (2)
| Vendor | Product | Platform | Versions |
|---|---|---|---|
| Mozilla | Firefox | — | 152 ≤ * |
| Mozilla | Thunderbird | — | 152 ≤ * |
Weakness (CWE)
| CWE | Source | Description |
|---|---|---|
| CWE-670 | adp | CWE-670 Always-Incorrect Control Flow Implementation |
CVSS scores (1)
| Score | Severity | Version | Source | Vector |
|---|---|---|---|---|
| 5.4 | MEDIUM | 3.1 | adp | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N |
References (3)