{"item": {"cve_id": "CVE-2019-8720", "ghsa_id": "", "osv_id": "", "title": "CVE-2019-8720", "description": "A vulnerability was found in WebKit. The flaw is triggered when processing maliciously crafted web content that may lead to arbitrary code execution. Improved memory handling addresses the multiple memory corruption issues.", "published_at": "2023-03-06T23:15:10.287", "modified_at": "2026-10-07T18:17:08.973", "vendor": "Webkitgtk", "product": "Webkitgtk", "affected_versions": ["Fixed in webkitgtk 2.26.0"], "fixed_versions": [], "cvss_score": 8.8, "cvss_version": "3.1", "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "severity": "HIGH", "epss_score": 0.01556, "epss_percentile": 0.74407, "epss_date": "2026-10-07", "is_kev": true, "kev_date": "2022-05-23", "kev_due_date": "2022-06-13", "kev_action": "Apply updates per vendor instructions.", "cwe_ids": ["CWE-119"], "attack_vector": "NETWORK", "attack_complexity": "LOW", "privileges_required": "NONE", "user_interaction": "REQUIRED", "references": ["https://bugzilla.redhat.com/show_bug.cgi?id=1876611", "https://webkitgtk.org/security/WSA-2019-0005.html", "https://bugzilla.redhat.com/show_bug.cgi?id=1876611", "https://webkitgtk.org/security/WSA-2019-0005.html", "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-8720"], "source_urls": {"NVD": "https://nvd.nist.gov/vuln/detail/CVE-2019-8720", "CVE.org": "https://www.cve.org/CVERecord?id=CVE-2019-8720", "CISA": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-8720", "FIRST EPSS": "https://api.first.org/data/v1/epss?cve=CVE-2019-8720"}, "patch_available": null, "workaround_available": null, "sources": ["NVD", "CVE.org", "CISA", "FIRST EPSS"], "reference_items": [{"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1876611", "tags": ["Issue Tracking", "Third Party Advisory"], "source": "NVD", "name": ""}, {"url": "https://webkitgtk.org/security/WSA-2019-0005.html", "tags": ["Vendor Advisory"], "source": "NVD", "name": ""}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1876611", "tags": ["Issue Tracking", "Third Party Advisory", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://webkitgtk.org/security/WSA-2019-0005.html", "tags": ["Vendor Advisory", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-8720", "tags": ["US Government Resource", "government-resource"], "source": "NVD", "name": ""}], "cvss_v4_score": null, "cvss_v4_vector": "", "cvss_v4_severity": "", "nvd_status": "Undergoing Analysis", "cna": "redhat", "date_reserved": "2019-02-18T00:00:00.000Z", "ssvc": {"options": {"Exploitation": "active", "Automatable": "no", "Technical Impact": "total"}, "version": "2.0.3", "timestamp": "2025-01-28T21:22:50.417013Z", "role": "CISA Coordinator"}, "affected_products": [{"vendor": "Webkitgtk", "product": "Webkitgtk", "ranges": ["avant 2.26.0"], "first_unaffected": ["2.26.0"], "source": "NVD"}, {"vendor": "Wpewebkit", "product": "Wpe Webkit", "ranges": ["avant 2.26.0"], "first_unaffected": ["2.26.0"], "source": "NVD"}, {"vendor": "Redhat", "product": "Codeready Linux Builder", "ranges": ["8.0"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Redhat", "product": "Codeready Linux Builder Eus", "ranges": ["8.4", "8.6"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Redhat", "product": "Codeready Linux Builder For arm64 Eus", "ranges": ["8.0", "8.4", "8.6"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Redhat", "product": "Codeready Linux Builder For Ibm Z Systems Eus", "ranges": ["8.0", "8.4", "8.6"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Redhat", "product": "Codeready Linux Builder For Power Little Endian Eus", "ranges": ["8.0", "8.4", "8.6"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Redhat", "product": "Enterprise Linux", "ranges": ["8.0"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Redhat", "product": "Enterprise Linux Desktop", "ranges": ["7.0"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Redhat", "product": "Enterprise Linux Eus", "ranges": ["8.4", "8.6"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Redhat", "product": "Enterprise Linux For arm64 Eus", "ranges": ["8.6"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Redhat", "product": "Enterprise Linux For Ibm Z Systems", "ranges": ["7.0", "8.0"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Redhat", "product": "Enterprise Linux For Ibm Z Systems Eus", "ranges": ["8.4", "8.6"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Redhat", "product": "Enterprise Linux For Power Big Endian", "ranges": ["7.0"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Redhat", "product": "Enterprise Linux For Power Little Endian", "ranges": ["7.0"], "first_unaffected": [], "source": "NVD"}, {"vendor": "n/a", "product": "webkitgtk", "ranges": ["Fixed in webkitgtk 2.26.0"], "first_unaffected": [], "source": "CVE.org"}], "kev_name": "WebKitGTK Memory Corruption Vulnerability", "kev_short_description": "WebKitGTK contains a memory corruption vulnerability which can allow an attacker to perform remote code execution.", "kev_ransomware": "Unknown", "kev_notes": "https://nvd.nist.gov/vuln/detail/CVE-2019-8720", "kev_cwes": ["CWE-119"], "wordfence_id": "", "mentions_sources": [], "version_match": "unknown", "risk_score": 59, "risk_class": "Important", "impact": {"confidentialite": "élevé", "integrite": "élevé", "disponibilite": "élevé", "summary": "Un attaquant exploitant cette vulnérabilité pourrait, selon les conditions décrites par les sources, exploitable à distance (réseau), sans authentification préalable, requiert une interaction de l'utilisateur, affecter la confidentialité des données, l'intégrité du système et la disponibilité du service.", "basis": "CVSS 3.1"}, "mechanism": "Gestion incorrecte des limites d'un tampon mémoire.", "mitigation": {"correction": {"available": true, "text": "Mettre à jour : selon les sources, ne sont plus concernées les versions à partir de Webkitgtk 2.26.0, Wpe Webkit 2.26.0."}, "mitigation": {"specific": "Aucune mesure de mitigation spécifique confirmée par les sources consultées. Consultez les références officielles pour d'éventuelles mesures détaillées.", "general": ["Maintenir le produit à jour et activer les mises à jour de sécurité.", "Restreindre l'exposition réseau du service au strict nécessaire.", "Appliquer le principe du moindre privilège.", "Surveiller les journaux et les alertes de sécurité."], "specific_links": []}, "containment": {"applicable": true, "actions": ["Action recommandée par la CISA : Apply updates per vendor instructions.", "Isoler ou restreindre l'accès au service concerné.", "Restreindre les flux réseau entrants/sortants liés au composant.", "Renforcer la surveillance des journaux et des accès.", "Désactiver temporairement le composant vulnérable si l'activité le permet."]}, "note": "Priorité aux consignes officielles de l'éditeur et des références. Vérifiez toujours l'avis de sécurité avant toute intervention en production.", "official_links": [{"url": "https://webkitgtk.org/security/WSA-2019-0005.html", "groupe": "avis_editeur", "groupe_titre": "Avis de sécurité de l'éditeur", "editeur": "", "domaine": "webkitgtk.org"}]}, "plain": {"verdict": "now", "verdict_label": "Exploité par des attaquants · à traiter aujourd'hui", "verdict_css": "now", "verdict_rank": 0, "headline": "Une zone mémoire peut déborder et déstabiliser Webkitgtk, à distance et sans compte", "headline_is_derived": true, "action": "Mettre à jour vers Webkitgtk 2.26.0, Wpe Webkit 2.26.0 ou plus récent, version publiée comme non concernée.", "action_kind": "update", "concerned": [{"version": "Webkitgtk 2.26.0, Wpe Webkit 2.26.0 ou plus récent", "state": "safe", "state_label": "Non concerné", "todo": "Rien à faire. Gardez les mises à jour automatiques activées."}, {"version": "Fixed in webkitgtk 2.26.0", "state": "hit", "state_label": "Concerné", "todo": "Mettre à jour vers Webkitgtk 2.26.0, Wpe Webkit 2.26.0 ou plus récent, version publiée comme non concernée."}, {"version": "Je ne connais pas ma version", "state": "unknown", "state_label": "À vérifier", "todo": "La version s'affiche généralement dans le menu « À propos » ou « Aide » du logiciel."}], "steps": [{"title": "Sauvegarder avant d'intervenir", "detail": "Une copie récente des données et de la configuration. Si votre hébergeur propose une sauvegarde en un clic, c'est le moment.", "duration": "10 min", "priority": false}, {"title": "Mettre à jour vers Webkitgtk 2.26.0, Wpe Webkit 2.26.0 ou plus récent, version publiée comme non concernée", "detail": "C'est la correction officielle. Tant qu'elle n'est pas appliquée, les autres mesures ne sont que temporaires.", "duration": "15 à 45 min", "priority": true}, {"title": "En attendant : réduire l'exposition sur Internet", "detail": "La faille est exploitable à distance. Limiter l'accès au service depuis l'extérieur (pare-feu, filtrage d'adresses, VPN) réduit fortement le risque.", "duration": "30 min", "priority": false}, {"title": "Vérifier que vous n'avez pas déjà été touché", "detail": "Cette faille est activement exploitée. Contrôler les comptes créés récemment, les connexions inhabituelles et les fichiers modifiés depuis la date de publication.", "duration": "30 min", "priority": true}, {"title": "Confirmer que tout fonctionne encore", "detail": "Après correction : page d'accueil, connexion, et les deux ou trois fonctions dont vous vous servez tous les jours.", "duration": "10 min", "priority": false}], "exploited": true, "exploited_label": "Oui, des attaques réelles sont constatées", "fixed_label": "Webkitgtk 2.26.0, Wpe Webkit 2.26.0 (non concernée selon les sources)", "affected_label": "Fixed in webkitgtk 2.26.0"}, "severity_display": "Élevée", "cvss_is_legacy": false, "risk_score_computable": true, "identifier": "CVE-2019-8720", "severity_fr": "Élevée", "epss_pct": 1.6, "source_records": [{"source": "NVD", "label": "NVD, NIST", "date_label": "Publié dans la base", "date": "2023-03-06", "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-8720"}, {"source": "CVE.org", "label": "CVE.org, programme CVE", "date_label": "Publié par l'organisme CNA", "date": "2023-03-06", "url": "https://www.cve.org/CVERecord?id=CVE-2019-8720"}, {"source": "CISA", "label": "CISA KEV", "date_label": "Ajout au catalogue", "date": "2022-05-23", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-8720"}, {"source": "FIRST EPSS", "label": "FIRST EPSS", "date_label": "Score daté du", "date": "2026-10-07", "url": "https://api.first.org/data/v1/epss?cve=CVE-2019-8720"}], "exploit_public": false, "reseau_sans_auth": false, "exposition": "À distance, sous conditions (compte ou action d'un utilisateur)", "owasp": []}, "presentation": {"en_bref": [{"question": "Est-elle attaquée ?", "ton": "alerte", "reponse": "Oui, attaques constatées", "source": "Catalogue CISA KEV"}, {"question": "Existe-t-il un correctif ?", "ton": "bon", "reponse": "Oui : 2.26.0", "source": "Versions publiées comme non concernées"}, {"question": "Comment l'attaquer ?", "ton": "neutre", "reponse": "À distance, sous conditions (compte ou action d'un utilisateur)", "source": "Vecteur CVSS publié"}, {"question": "Risque d'exploitation", "ton": "vigilance", "reponse": "1,6 % sur 30 jours", "source": "Plus probable que 74 % des failles connues"}], "references": [{"cle": "avis_editeur", "titre": "Avis de sécurité de l'éditeur", "explication": "La parole de l'éditeur du produit : elle fait foi pour savoir quoi installer.", "items": [{"url": "https://webkitgtk.org/security/WSA-2019-0005.html", "domaine": "webkitgtk.org", "editeur": "", "etiquettes": ["Avis de l'éditeur"], "nom": "", "lien": true, "casse": false}]}, {"cle": "avis_tiers", "titre": "Avis d'autorités et d'organismes tiers", "explication": "CERT, agences gouvernementales, bases de vulnérabilités, chercheurs.", "items": [{"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1876611", "domaine": "bugzilla.redhat.com", "editeur": "Red Hat", "etiquettes": ["Suivi de ticket", "Avis d'un tiers"], "nom": "", "lien": true, "casse": false}, {"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-8720", "domaine": "www.cisa.gov", "editeur": "CISA", "etiquettes": ["Ressource gouvernementale américaine", "Ressource gouvernementale"], "nom": "", "lien": true, "casse": false}]}], "liens_correction": [{"url": "https://webkitgtk.org/security/WSA-2019-0005.html", "domaine": "webkitgtk.org", "editeur": "", "etiquettes": ["Avis de l'éditeur"], "nom": "", "lien": true, "casse": false, "groupe": "avis_editeur", "groupe_titre": "Avis de sécurité de l'éditeur"}], "nb_exploits": 0, "cvss": {"version": "3.1", "vecteur": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "metriques": [{"code": "AV", "nom": "Vecteur d'attaque", "valeur": "Réseau (à distance, y compris par Internet)", "brut": "N", "explication": "D'où l'attaquant doit agir."}, {"code": "AC", "nom": "Complexité de l'attaque", "valeur": "Faible", "brut": "L", "explication": "Conditions hors du contrôle de l'attaquant."}, {"code": "PR", "nom": "Privilèges requis", "valeur": "Aucun (pas de compte)", "brut": "N", "explication": "Droits dont l'attaquant a besoin avant d'attaquer."}, {"code": "UI", "nom": "Interaction de l'utilisateur", "valeur": "Requise", "brut": "R", "explication": "Une victime doit-elle cliquer ou ouvrir quelque chose ?"}, {"code": "S", "nom": "Portée", "valeur": "Inchangée", "brut": "U", "explication": "L'attaque peut-elle toucher d'autres composants que celui qui est vulnérable ?"}, {"code": "C", "nom": "Confidentialité", "valeur": "Élevé", "brut": "H", "explication": "Accès à des informations protégées."}, {"code": "I", "nom": "Intégrité", "valeur": "Élevé", "brut": "H", "explication": "Modification de données ou du système."}, {"code": "A", "nom": "Disponibilité", "valeur": "Élevé", "brut": "H", "explication": "Arrêt ou ralentissement du service."}], "calculateur": "https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "specification": "https://www.first.org/cvss/v3.1/specification-document"}, "cvss4": null, "cwe": [{"id": "CWE-119", "nom": "Improper Restriction of Operations within the Bounds of a Memory Buffer", "url": "https://cwe.mitre.org/data/definitions/119.html"}], "owasp": [], "ssvc": {"lignes": [{"nom": "Exploitation", "valeur": "Exploitation active constatée", "brut": "active"}, {"nom": "Automatisable", "valeur": "Non : l'attaque ne peut pas être entièrement automatisée", "brut": "no"}, {"nom": "Impact technique", "valeur": "Total : contrôle complet du composant ou de ses informations", "brut": "total"}], "version": "2.0.3", "date": "2025-01-28", "role": "CISA Coordinator", "url": "https://www.cisa.gov/stakeholder-specific-vulnerability-categorization-ssvc"}, "chronologie": [{"date": "2019-02-18", "libelle": "Identifiant réservé", "qui": "Programme CVE"}, {"date": "2022-05-23", "libelle": "Ajout au catalogue des failles exploitées", "qui": "CISA"}, {"date": "2022-06-13", "libelle": "Échéance de correction fixée par la CISA", "qui": "CISA"}, {"date": "2023-03-06", "libelle": "Publication de la vulnérabilité", "qui": "redhat"}, {"date": "2025-01-28", "libelle": "Décision SSVC publiée", "qui": "CISA"}, {"date": "2026-10-07", "libelle": "Calcul du score EPSS affiché", "qui": "FIRST"}, {"date": "2026-10-07", "libelle": "Dernière mise à jour de la fiche source", "qui": "Source"}], "liens_officiels": [{"nom": "NVD (NIST)", "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-8720", "description": "Fiche de référence : CVSS, CPE, références étiquetées."}, {"nom": "CVE.org", "url": "https://www.cve.org/CVERecord?id=CVE-2019-8720", "description": "Enregistrement officiel publié par l'organisme qui a attribué l'identifiant."}, {"nom": "CISA KEV", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-8720", "description": "Entrée du catalogue des failles activement exploitées."}, {"nom": "FIRST EPSS", "url": "https://api.first.org/data/v1/epss?cve=CVE-2019-8720", "description": "Score de probabilité d'exploitation du jour."}, {"nom": "OSV.dev", "url": "https://osv.dev/vulnerability/CVE-2019-8720", "description": "Paquets open source concernés et versions corrigées."}, {"nom": "GitHub Advisory Database", "url": "https://github.com/advisories?query=CVE-2019-8720", "description": "Avis de sécurité des dépendances logicielles."}], "produits": [{"vendor": "Webkitgtk", "product": "Webkitgtk", "ranges": ["avant 2.26.0"], "first_unaffected": ["2.26.0"], "source": "NVD"}, {"vendor": "Wpewebkit", "product": "Wpe Webkit", "ranges": ["avant 2.26.0"], "first_unaffected": ["2.26.0"], "source": "NVD"}, {"vendor": "Redhat", "product": "Codeready Linux Builder", "ranges": ["8.0"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Redhat", "product": "Codeready Linux Builder Eus", "ranges": ["8.4", "8.6"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Redhat", "product": "Codeready Linux Builder For arm64 Eus", "ranges": ["8.0", "8.4", "8.6"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Redhat", "product": "Codeready Linux Builder For Ibm Z Systems Eus", "ranges": ["8.0", "8.4", "8.6"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Redhat", "product": "Codeready Linux Builder For Power Little Endian Eus", "ranges": ["8.0", "8.4", "8.6"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Redhat", "product": "Enterprise Linux", "ranges": ["8.0"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Redhat", "product": "Enterprise Linux Desktop", "ranges": ["7.0"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Redhat", "product": "Enterprise Linux Eus", "ranges": ["8.4", "8.6"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Redhat", "product": "Enterprise Linux For arm64 Eus", "ranges": ["8.6"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Redhat", "product": "Enterprise Linux For Ibm Z Systems", "ranges": ["7.0", "8.0"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Redhat", "product": "Enterprise Linux For Ibm Z Systems Eus", "ranges": ["8.4", "8.6"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Redhat", "product": "Enterprise Linux For Power Big Endian", "ranges": ["7.0"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Redhat", "product": "Enterprise Linux For Power Little Endian", "ranges": ["7.0"], "first_unaffected": [], "source": "NVD"}, {"vendor": "n/a", "product": "webkitgtk", "ranges": ["Fixed in webkitgtk 2.26.0"], "first_unaffected": [], "source": "CVE.org"}], "notes_kev": ["https://nvd.nist.gov/vuln/detail/CVE-2019-8720"]}, "consulted_at": "2026-10-08T02:34:03.529424+00:00"}