CVE-2026-92018EPSS p26.4%

CVE-2026-92018CVE-2026-92018

Description

Sandbox escape in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

Scoring

CVSS 9.6 ()
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
EPSS0.35% probability of exploitation · percentile 26.4% · 2026-10-05T12:00:23Z
Last modified2026-09-20
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.