SEPTEMBER 7, 2026
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Case File

CVE-2026-16406

CRITICAL · CVSS 9.1 EPSS 0.24%

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

CyberRota Analysis

AI-Generated

A critical vulnerability in the Networking component of Firefox allows for a mitigation bypass, potentially enabling attackers to exploit other vulnerabilities in the browser. Users of affected Firefox versions should prioritize updates to version 153 or later to safeguard against potential exploitation. Organizations relying on Firefox for secure browsing should ensure their deployments are up-to-date to mitigate this risk.

CVE
CVE-2026-16406
Severity
CRITICAL
CVSS
9.1
EPSS
0.24%
Firefox

Original NVD Description

Mitigation bypass in the Networking component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.

Related CVEs

Other vulnerabilities affecting the same vendor(s)