CVE-2026-109734EPSS p5.5%

CVE-2026-109734CVE-2026-109734

Description

Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

Scoring

EPSS0.17% probability of exploitation · percentile 5.5% · 2026-10-17T12:00:28Z
Last modified2026-10-13
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.