CVE-2026-12313EPSS p7.2%

CVE-2026-12313CVE-2026-12313

mozilla / firefox

Description

Information disclosure, sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.

Scoring

CVSS 4.7 ()
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N
EPSS0.18% probability of exploitation · percentile 7.2% · 2026-06-18T12:00:27Z
Last modified2026-06-16
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.