VULNERABILITY INTELLIGENCE
CVE-2026-2804
CVSS score5.4 MEDIUM
EPSS probability0.47%
CISA KEVNot currently listed
Published2026-02-24
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Description
Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.
Weakness classification
- CWE-416: Use After Free
Primary references
- security@mozilla.org — Permissions Required
- security@mozilla.org — Vendor Advisory
- security@mozilla.org — Vendor Advisory