CVE-2026-12300EPSS p16.8%

CVE-2026-12300CVE-2026-12300

mozilla / firefox

Description

Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152 and Thunderbird 152.

Scoring

CVSS 5.3 ()
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS0.25% probability of exploitation · percentile 16.8% · 2026-08-03T12:00:16Z
Last modified2026-06-18
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.