{"item": {"cve_id": "CVE-2025-49706", "ghsa_id": "", "osv_id": "", "title": "Microsoft SharePoint Server Spoofing Vulnerability", "description": "Improper authentication in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.", "published_at": "2025-07-08T17:15:58.250", "modified_at": "2026-08-04T05:16:34.723", "vendor": "Microsoft", "product": "Sharepoint Enterprise Server", "affected_versions": ["16.0.0"], "fixed_versions": [], "cvss_score": 6.5, "cvss_version": "3.1", "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N", "severity": "MEDIUM", "epss_score": 0.99076, "epss_percentile": 0.99932, "epss_date": "2026-10-06", "is_kev": true, "kev_date": "2025-07-22", "kev_due_date": "2025-07-23", "kev_action": "Disconnect public-facing versions of SharePoint Server that have reached their end-of-life (EOL) or end-of-service (EOS) to include SharePoint Server 2013 and earlier versions. For supported versions, please follow the mitigations according to CISA (URL listed below in Notes) and vendor instructions (URL listed below in Notes). Adhere to the applicable BOD 22-01 guidance for cloud services or discontinue use of the product if mitigations are not available.", "cwe_ids": ["CWE-287"], "attack_vector": "NETWORK", "attack_complexity": "LOW", "privileges_required": "NONE", "user_interaction": "NONE", "references": ["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49706", "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-49706", "https://www.microsoft.com/en-us/security/blog/2025/07/22/disrupting-active-exploitation-of-on-premises-sharepoint-vulnerabilities/"], "source_urls": {"NVD": "https://nvd.nist.gov/vuln/detail/CVE-2025-49706", "CVE.org": "https://www.cve.org/CVERecord?id=CVE-2025-49706", "CISA": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-49706", "FIRST EPSS": "https://api.first.org/data/v1/epss?cve=CVE-2025-49706"}, "patch_available": null, "workaround_available": null, "sources": ["NVD", "CVE.org", "CISA", "FIRST EPSS"], "reference_items": [{"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49706", "tags": ["Vendor Advisory", "vendor-advisory", "patch"], "source": "NVD", "name": ""}, {"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-49706", "tags": ["US Government Resource", "government-resource"], "source": "NVD", "name": ""}, {"url": "https://www.microsoft.com/en-us/security/blog/2025/07/22/disrupting-active-exploitation-of-on-premises-sharepoint-vulnerabilities/", "tags": ["Press/Media Coverage", "Vendor Advisory", "vendor-advisory"], "source": "NVD", "name": ""}], "cvss_v4_score": null, "cvss_v4_vector": "", "cvss_v4_severity": "", "nvd_status": "Analyzed", "cna": "microsoft", "date_reserved": "2025-06-09T19:59:44.875Z", "ssvc": {"options": {"Exploitation": "active", "Automatable": "no", "Technical Impact": "partial"}, "version": "2.0.3", "timestamp": "2025-07-22T00:00:00+00:00", "role": "CISA Coordinator"}, "affected_products": [{"vendor": "Microsoft", "product": "Sharepoint Enterprise Server", "ranges": ["2016"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Microsoft", "product": "Sharepoint Server", "ranges": ["avant 16.0.18526.20424", "2019"], "first_unaffected": ["16.0.18526.20424"], "source": "NVD"}, {"vendor": "Microsoft", "product": "Microsoft SharePoint Enterprise Server 2016", "ranges": ["de 16.0.0 à 16.0.5508.1000 (exclue)"], "first_unaffected": ["16.0.5508.1000"], "source": "CVE.org"}, {"vendor": "Microsoft", "product": "Microsoft SharePoint Server 2019", "ranges": ["de 16.0.0 à 16.0.10417.20027 (exclue)"], "first_unaffected": ["16.0.10417.20027"], "source": "CVE.org"}, {"vendor": "Microsoft", "product": "Microsoft SharePoint Server Subscription Edition", "ranges": ["de 16.0.0 à 16.0.18526.20424 (exclue)"], "first_unaffected": ["16.0.18526.20424"], "source": "CVE.org"}], "kev_name": "Microsoft SharePoint Improper Authentication Vulnerability", "kev_short_description": "Microsoft SharePoint contains an improper authentication vulnerability that allows an authorized attacker to perform spoofing over a network. Successfully exploitation could allow an attacker to view sensitive information and make some changes to disclosed information. This vulnerability could be chained with CVE-2025-49704. CVE-2025-53771 is a patch bypass for CVE-2025-49706, and the updates for CVE-2025-53771 include more robust protection than those for CVE-2025-49706.", "kev_ransomware": "Known", "kev_notes": "CISA Mitigation Instructions: https://www.cisa.gov/news-events/alerts/2025/07/20/microsoft-releases-guidance-exploitation-sharepoint-vulnerability-cve-2025-53770 ; https://www.microsoft.com/en-us/security/blog/2025/07/22/disrupting-active-exploitation-of-on-premises-sharepoint-vulnerabilities/ ; https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49706 ; https://nvd.nist.gov/vuln/detail/CVE-2025-49706", "kev_cwes": ["CWE-287"], "wordfence_id": "", "mentions_sources": [], "version_match": "unknown", "risk_score": 80, "risk_class": "Critique", "impact": {"confidentialite": "limité", "integrite": "limité", "disponibilite": "aucun", "summary": "Un attaquant exploitant cette vulnérabilité pourrait, selon les conditions décrites par les sources, exploitable à distance (réseau), sans authentification préalable, affecter la confidentialité des données et l'intégrité du système.", "basis": "CVSS 3.1"}, "mechanism": "Authentification incorrecte : le contrôle d'identité peut être contourné dans certaines conditions.", "mitigation": {"correction": {"available": true, "text": "Mettre à jour : selon les sources, ne sont plus concernées les versions à partir de Sharepoint Server 16.0.18526.20424, Microsoft SharePoint Enterprise Server 2016 16.0.5508.1000, Microsoft SharePoint Server 2019 16.0.10417.20027, Microsoft SharePoint Server Subscription Edition 16.0.18526.20424."}, "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 : Disconnect public-facing versions of SharePoint Server that have reached their end-of-life (EOL) or end-of-service (EOS) to include SharePoint Server 2013 and earlier versions. For supported versions, please follow the mitigations according to CISA (URL listed below in Notes) and vendor instructions (URL listed below in Notes). Adhere to the applicable BOD 22-01 guidance for cloud services or discontinue use of the product if mitigations are not available.", "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://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49706", "groupe": "correctif", "groupe_titre": "Correctifs et versions corrigées", "editeur": "Microsoft", "domaine": "msrc.microsoft.com"}, {"url": "https://www.microsoft.com/en-us/security/blog/2025/07/22/disrupting-active-exploitation-of-on-premises-sharepoint-vulnerabilities/", "groupe": "avis_editeur", "groupe_titre": "Avis de sécurité de l'éditeur", "editeur": "", "domaine": "www.microsoft.com"}]}, "plain": {"verdict": "now", "verdict_label": "Exploité par des attaquants · à traiter aujourd'hui", "verdict_css": "now", "verdict_rank": 0, "headline": "Le contrôle du mot de passe peut être contourné dans certains cas, à distance et sans compte", "headline_is_derived": true, "action": "Mettre à jour vers Sharepoint Server 16.0.18526.20424, Microsoft SharePoint Enterprise Server 2016 16.0.5508.1000 ou plus récent, version publiée comme non concernée.", "action_kind": "update", "concerned": [{"version": "Sharepoint Server 16.0.18526.20424, Microsoft SharePoint Enterprise Server 2016 16.0.5508.1000 ou plus récent", "state": "safe", "state_label": "Non concerné", "todo": "Rien à faire. Gardez les mises à jour automatiques activées."}, {"version": "16.0.0", "state": "hit", "state_label": "Concerné", "todo": "Mettre à jour vers Sharepoint Server 16.0.18526.20424, Microsoft SharePoint Enterprise Server 2016 16.0.5508.1000 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 Sharepoint Server 16.0.18526.20424, Microsoft SharePoint Enterprise Server 2016 16.0.5508.1000 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": "Sharepoint Server 16.0.18526.20424, Microsoft SharePoint Enterprise Server 2016 16.0.5508.1000 (non concernée selon les sources)", "affected_label": "16.0.0"}, "severity_display": "Moyenne", "cvss_is_legacy": false, "risk_score_computable": true, "identifier": "CVE-2025-49706", "severity_fr": "Moyenne", "epss_pct": 99.1, "source_records": [{"source": "NVD", "label": "NVD, NIST", "date_label": "Publié dans la base", "date": "2025-07-08", "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-49706"}, {"source": "CVE.org", "label": "CVE.org, programme CVE", "date_label": "Publié par l'organisme CNA", "date": "2025-07-08", "url": "https://www.cve.org/CVERecord?id=CVE-2025-49706"}, {"source": "CISA", "label": "CISA KEV", "date_label": "Ajout au catalogue", "date": "2025-07-22", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-49706"}, {"source": "FIRST EPSS", "label": "FIRST EPSS", "date_label": "Score daté du", "date": "2026-10-06", "url": "https://api.first.org/data/v1/epss?cve=CVE-2025-49706"}], "exploit_public": false, "reseau_sans_auth": true, "exposition": "À distance, sans compte et sans action d'un utilisateur", "owasp": [{"code": "A07", "nom": "Défaillances d'authentification", "nom_officiel": "Authentication Failures", "slug": "a07-defaillances-d-authentification", "libelle": "A07:2025 Défaillances d'authentification", "url_officielle": "https://top10.owasp.org/2025/A07_2025-Authentication_Failures/"}]}, "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 : 16.0.18526.20424, 16.0.5508.1000, 16.0.10417.20027", "source": "Versions publiées comme non concernées"}, {"question": "Comment l'attaquer ?", "ton": "alerte", "reponse": "À distance, sans compte et sans action d'un utilisateur", "source": "Vecteur CVSS publié"}, {"question": "Risque d'exploitation", "ton": "alerte", "reponse": "99,1 % sur 30 jours", "source": "Plus probable que 100 % des failles connues"}], "references": [{"cle": "correctif", "titre": "Correctifs et versions corrigées", "explication": "Les pages que les sources désignent comme correctif ou notes de version.", "items": [{"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49706", "domaine": "msrc.microsoft.com", "editeur": "Microsoft", "etiquettes": ["Avis de l'éditeur", "Correctif"], "nom": "", "lien": true, "casse": false}]}, {"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://www.microsoft.com/en-us/security/blog/2025/07/22/disrupting-active-exploitation-of-on-premises-sharepoint-vulnerabilities/", "domaine": "www.microsoft.com", "editeur": "", "etiquettes": ["Article de presse", "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://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-49706", "domaine": "www.cisa.gov", "editeur": "CISA", "etiquettes": ["Ressource gouvernementale américaine", "Ressource gouvernementale"], "nom": "", "lien": true, "casse": false}]}], "liens_correction": [{"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49706", "domaine": "msrc.microsoft.com", "editeur": "Microsoft", "etiquettes": ["Avis de l'éditeur", "Correctif"], "nom": "", "lien": true, "casse": false, "groupe": "correctif", "groupe_titre": "Correctifs et versions corrigées"}, {"url": "https://www.microsoft.com/en-us/security/blog/2025/07/22/disrupting-active-exploitation-of-on-premises-sharepoint-vulnerabilities/", "domaine": "www.microsoft.com", "editeur": "", "etiquettes": ["Article de presse", "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:N/S:U/C:L/I:L/A:N", "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": "Aucune", "brut": "N", "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": "Faible", "brut": "L", "explication": "Accès à des informations protégées."}, {"code": "I", "nom": "Intégrité", "valeur": "Faible", "brut": "L", "explication": "Modification de données ou du système."}, {"code": "A", "nom": "Disponibilité", "valeur": "Aucun", "brut": "N", "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:N/S:U/C:L/I:L/A:N", "specification": "https://www.first.org/cvss/v3.1/specification-document"}, "cvss4": null, "cwe": [{"id": "CWE-287", "nom": "Improper Authentication", "url": "https://cwe.mitre.org/data/definitions/287.html"}], "owasp": [{"code": "A07", "nom": "Défaillances d'authentification", "nom_officiel": "Authentication Failures", "slug": "a07-defaillances-d-authentification", "libelle": "A07:2025 Défaillances d'authentification", "url_officielle": "https://top10.owasp.org/2025/A07_2025-Authentication_Failures/"}], "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": "Partiel : contrôle ou informations limités", "brut": "partial"}], "version": "2.0.3", "date": "2025-07-22", "role": "CISA Coordinator", "url": "https://www.cisa.gov/stakeholder-specific-vulnerability-categorization-ssvc"}, "chronologie": [{"date": "2025-06-09", "libelle": "Identifiant réservé", "qui": "Programme CVE"}, {"date": "2025-07-08", "libelle": "Publication de la vulnérabilité", "qui": "microsoft"}, {"date": "2025-07-22", "libelle": "Ajout au catalogue des failles exploitées", "qui": "CISA"}, {"date": "2025-07-22", "libelle": "Décision SSVC publiée", "qui": "CISA"}, {"date": "2025-07-23", "libelle": "Échéance de correction fixée par la CISA", "qui": "CISA"}, {"date": "2026-08-04", "libelle": "Dernière mise à jour de la fiche source", "qui": "Source"}, {"date": "2026-10-06", "libelle": "Calcul du score EPSS affiché", "qui": "FIRST"}], "liens_officiels": [{"nom": "NVD (NIST)", "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-49706", "description": "Fiche de référence : CVSS, CPE, références étiquetées."}, {"nom": "CVE.org", "url": "https://www.cve.org/CVERecord?id=CVE-2025-49706", "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-2025-49706", "description": "Entrée du catalogue des failles activement exploitées."}, {"nom": "FIRST EPSS", "url": "https://api.first.org/data/v1/epss?cve=CVE-2025-49706", "description": "Score de probabilité d'exploitation du jour."}, {"nom": "OSV.dev", "url": "https://osv.dev/vulnerability/CVE-2025-49706", "description": "Paquets open source concernés et versions corrigées."}, {"nom": "GitHub Advisory Database", "url": "https://github.com/advisories?query=CVE-2025-49706", "description": "Avis de sécurité des dépendances logicielles."}], "produits": [{"vendor": "Microsoft", "product": "Sharepoint Enterprise Server", "ranges": ["2016"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Microsoft", "product": "Sharepoint Server", "ranges": ["avant 16.0.18526.20424", "2019"], "first_unaffected": ["16.0.18526.20424"], "source": "NVD"}, {"vendor": "Microsoft", "product": "Microsoft SharePoint Enterprise Server 2016", "ranges": ["de 16.0.0 à 16.0.5508.1000 (exclue)"], "first_unaffected": ["16.0.5508.1000"], "source": "CVE.org"}, {"vendor": "Microsoft", "product": "Microsoft SharePoint Server 2019", "ranges": ["de 16.0.0 à 16.0.10417.20027 (exclue)"], "first_unaffected": ["16.0.10417.20027"], "source": "CVE.org"}, {"vendor": "Microsoft", "product": "Microsoft SharePoint Server Subscription Edition", "ranges": ["de 16.0.0 à 16.0.18526.20424 (exclue)"], "first_unaffected": ["16.0.18526.20424"], "source": "CVE.org"}], "notes_kev": ["https://www.cisa.gov/news-events/alerts/2025/07/20/microsoft-releases-guidance-exploitation-sharepoint-vulnerability-cve-2025-53770", "https://www.microsoft.com/en-us/security/blog/2025/07/22/disrupting-active-exploitation-of-on-premises-sharepoint-vulnerabilities/", "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49706", "https://nvd.nist.gov/vuln/detail/CVE-2025-49706"]}, "consulted_at": "2026-10-07T08:18:19.695750+00:00"}