CVE-2025-3839
HIGH EPSS 30.0%
Published Jan 23, 20265mo ago · Modified Jun 17, 20262w ago
8.0 CVSS 3.1
Published Jan 23, 2026 5mo ago
Last Modified Jun 17, 2026 2w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction Required
Scope Changed
Confidentiality High
Integrity High
Availability None
Threat Intelligence
EPSS Exploit Probability
30.0% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-356
References 2
- access.redhat.com https://access.redhat.com/security/cve/CVE-2025-3839
- bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=2361430
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.