AUGUST 17, 2026
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Case File

CVE-2026-12315

CRITICAL · CVSS 9.1 EPSS 0.25%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2026-06-16 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.1. It affects Firefox.

CVE
CVE-2026-12315
Severity
CRITICAL
CVSS
9.1
EPSS
0.25%
Firefox

Original NVD Description

Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.

Related CVEs

Other vulnerabilities affecting the same vendor(s)