CVE-2026-2804

medium

Description

Use-after-free in the JavaScript: WebAssembly component. This vulnerability affects Firefox < 148 and Thunderbird < 148.

References

https://www.mozilla.org/security/advisories/mfsa2026-16/

https://www.mozilla.org/security/advisories/mfsa2026-13/

https://bugzilla.mozilla.org/show_bug.cgi?id=2013584

Details

Source: Mitre, NVD

Published: 2026-02-24

Updated: 2026-02-24

Risk Information

CVSS v2

Base Score: 6.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 5.4

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Severity: Medium