AUGUST 4, 2026
Live Feed
Back to database
Case File

CVE-2026-2778

CRITICAL · CVSS 10 EPSS 0.48%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2026-02-24 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 10.0. It affects Firefox.

CVE
CVE-2026-2778
Severity
CRITICAL
CVSS
10
EPSS
0.48%
Firefox

Original NVD Description

Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

Related CVEs

Other vulnerabilities affecting the same vendor(s)

CVE-2026-16412 CRITICAL CVE-2026-16411 CRITICAL CVE-2026-16410 CRITICAL CVE-2026-16409 HIGH CVE-2026-16408 CRITICAL CVE-2026-16407 CRITICAL