CVE-2026-2806

CRITICAL

Firefox <148 - Memory Corruption

Title source: llm
STIX 2.1

Description

Uninitialized memory in the Graphics: Text component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.

Scores

CVSS v3 9.1
EPSS 0.0006
EPSS Percentile 18.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-457 CWE-908
Status published
Products (4)
mozilla/firefox < 148.0
Mozilla/Firefox 148
mozilla/thunderbird < 148.0
Mozilla/Thunderbird 148
Published Feb 24, 2026
Tracked Since Feb 24, 2026