SEPTEMBER 7, 2026
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Case File

CVE-2026-16394

CRITICAL · CVSS 9.1 EPSS 0.25%

Source: NVD + CISA KEV + EPSS · Published 2026-07-21 · Last synced 2026-08-20

CyberRota Analysis

AI-Generated

A critical vulnerability in Firefox allows for a mitigation bypass in the Document Object Model (DOM) security component, potentially enabling attackers to execute arbitrary code. Users of affected versions should prioritize updating to Firefox 153 or Thunderbird 153 to safeguard against potential exploitation. Organizations relying on these browsers for secure web interactions must act swiftly to mitigate risks associated with this flaw.

CVE
CVE-2026-16394
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 153 and Thunderbird 153.

Related CVEs

Other vulnerabilities affecting the same vendor(s)

CVE-2026-84642 HIGH CVE-2026-84641 HIGH CVE-2026-84640 HIGH CVE-2026-84639 CRITICAL CVE-2026-84637 CRITICAL CVE-2026-84145 HIGH