CVE-2025-14331

—

CVSS 3.1

6.5 medium

EPSS

<1%p8

Published

Dec 9, 2025 (Dec 9, 2025)

Modified

Jun 17, 2026

Description

Same-origin policy bypass in the Request Handling component. This vulnerability was fixed in Firefox 146, Firefox ESR 115.31, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6.

Vendors: mozilla
Products: firefox, thunderbird
Weakness: CWE-346
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (0.2%)

In the news0 stories

No ingested article mentions this CVE yet.