CVE-2026-16406EPSS p14.9%

CVE-2026-16406CVE-2026-16406

mozilla / firefox

Description

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

Scoring

CVSS 9.1 ()
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS0.25% probability of exploitation · percentile 14.9% · 2026-10-05T12:00:23Z
Last modified2026-07-22
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.