CVE-2026-109749EPSS p12.0%

CVE-2026-109749CVE-2026-109749

Description

Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.

Scoring

CVSS 5.4 ()
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
EPSS0.22% probability of exploitation · percentile 12.0% · 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.