CVE-2025-14331

MEDIUM

Firefox < 115.31.0, < 146.0 and Thunderbird < 140.6.0, < 146.0 - Same-Origin Policy Bypass in Request Handling

Title source: llm
STIX 2.1

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.

References (6)

Core 6

Scores

CVSS v3 6.5
EPSS 0.0016
EPSS Percentile 5.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-346
Status published
Products (9)
mozilla/firefox < 115.31.0
mozilla/firefox < 146.0
Mozilla/Firefox 115.31 - 115.*
Mozilla/Firefox 140.6 - 140.*
Mozilla/Firefox 146
mozilla/thunderbird < 140.6.0
mozilla/thunderbird < 146.0
Mozilla/Thunderbird 140.6 - 140.*
Mozilla/Thunderbird 146
Published Dec 09, 2025
Tracked Since Feb 18, 2026