CVE-2025-3839

high

Description

A flaw was found in Epiphany, a tool that allows websites to open external URL handler applications with minimal user interaction. This design can be misused to exploit vulnerabilities within those handlers, making them appear remotely exploitable. The browser fails to properly warn or gate this action, resulting in potential code execution on the client device via trusted UI behavior.

References

https://bugzilla.redhat.com/show_bug.cgi?id=2361430

https://access.redhat.com/security/cve/CVE-2025-3839

Details

Source: Mitre, NVD

Published: 2026-01-23

Updated: 2026-01-26

Risk Information

CVSS v2

Base Score: 7.1

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:N

Severity: High

CVSS v3

Base Score: 8

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N

Severity: High

EPSS

EPSS: 0.00014