CVE-2026-3847

HIGH

Firefox <148.0.2 - Memory Corruption

Title source: llm

Description

Memory safety bugs present in Firefox 148.0.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 148.0.2.

References (2)

Scores

CVSS v3 8.8
EPSS 0.0004
EPSS Percentile 11.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Classification

CWE
CWE-119 CWE-416
Status published

Affected Products (1)

mozilla/firefox < 148.0.2

Timeline

Published Mar 10, 2026
Tracked Since Mar 11, 2026