CVE-2026-2804

MEDIUM

Firefox <148 - Use After Free

Title source: llm

Description

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

References (3)

Scores

CVSS v3 5.4
EPSS 0.0003
EPSS Percentile 8.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Classification

CWE
CWE-416
Status published

Affected Products (2)

mozilla/firefox < 148.0
mozilla/thunderbird < 148.0

Timeline

Published Feb 24, 2026
Tracked Since Feb 24, 2026