CVE-2026-2801

HIGH

Firefox < 148.0 and Thunderbird < 148.0 - Incorrect Boundary Conditions in JavaScript WebAssembly Component

Title source: llm
STIX 2.1

Description

Incorrect boundary conditions in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.

References (3)

Core 3

Scores

CVSS v3 7.5
EPSS 0.0029
EPSS Percentile 20.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-754
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