CVE-2026-3847

HIGH

Firefox <148.0.2 - Memory Corruption

Title source: llm
STIX 2.1

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 was fixed in Firefox 148.0.2.

Scores

CVSS v3 8.8
EPSS 0.0005
EPSS Percentile 14.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-119 CWE-416
Status published
Products (2)
mozilla/firefox < 148.0.2
Mozilla/Firefox 148.0.2
Published Mar 10, 2026
Tracked Since Mar 11, 2026