> CVE-2025-3839 [HIGH]

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PUBLISHED
2026-01-23 05:16
MODIFIED
2026-01-23 05:16
CVSS_SCORE V3
8.0
EPSS (Prob. Exploit)
0.39%
Top 66.2%
DATA SOURCES:
NVD 🔗 2026-01-23 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-11-08 OSV 🔗 2026-11-08

> 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.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N
EXPLOITABILITY
1.6
IMPACT
5.8

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Network (N)
Exploit possible à distance via réseau (HTTP, API, etc.)
AC (Complexité d'Attaque)
Attack Complexity
High (H)
Conditions spécifiques doivent être réunies pour exploiter
PR (Privilèges Requis)
Privileges Required
None (N)
Aucune authentification requise
UI (Interaction Utilisateur)
User Interaction
Required (R)
Nécessite une action utilisateur (clic lien, ouverture fichier, etc.)
S (Périmètre)
Scope
Changed (C)
Impact s'étend au-delà du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
High (H)
Divulgation totale d'informations
I (Impact Intégrité)
Integrity Impact
High (H)
Modification totale des données possible
A (Impact Disponibilité)
Availability Impact
None (N)
Aucune interruption de service

> RÉSUMÉ DES IMPACTS

Confidentialité
High
Divulgation totale d'informations
Intégrité
High
Modification totale des données possible
Disponibilité
None
Aucune interruption de service

> WEAKNESSES

CWE-356

> CWE DETAILED DESCRIPTIONS

CWE-356: Missing User Interaction for Potentially Unsafe Action - The product encounters a situation in which some of its behavior is security-critical and should be authorized by a human before progressing, but it does not properly consult with the human user or its proxy (such as UI approval dialogues or pre-set policies) to determine whether it is allowed to perform the potentially dangerous behavior.

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

Epiphany: insecure external protocol invocation in epiphany

AFFECTED PACKAGES:
Unknown / Unknown
291 versions affected

> HISTORIQUE DES MODIFICATIONS

Première apparition
23/01/2026 05:16
Source: NVD
📊 ENRICHISSEMENT 01/11/2026 06:58
CWE
Champ modifié: Description CWE
Ancienne valeur:
CWE-356: Product UI does not Warn User of Unsafe Actions - The product's user interface does not warn the user before undertaking an unsafe action on behalf of that user. This makes it easier for atta...
Nouvelle valeur:
CWE-356: Missing User Interaction for Potentially Unsafe Action - The product encounters a situation in which some of its behavior is security-critical and should be authorized by a ...
📊 ENRICHISSEMENT 01/02/2026 06:44
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-356: Product UI does not Warn User of Unsafe Actions - The product's user interface does not warn the user before undertaking an unsafe action on behalf of that user. This makes it easier for atta...
Total des modifications: 2 Dernière mise à jour: 1 week ago

> REFERENCES

https://access.redhat.com/security/cve/CVE-2025-3839
https://bugzilla.redhat.com/show_bug.cgi?id=2361430
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