> CVE-2026-47304 [HIGH]

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PUBLISHED
2026-07-14 19:17
MODIFIED
2026-07-14 19:17
CVSS_SCORE V3
8.1
EPSS (Prob. Exploit)
0.29%
Top 79.9%
DATA SOURCES:
NVD 🔗 2026-07-14 RED HAT 🔗 2026-07-19 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-10-25 GITHUB 🔗 2026-10-29 MSRC 🔗 2026-11-02

> DESCRIPTION

Improper verification of cryptographic signature in .NET allows an unauthorized attacker to bypass a security feature over a network.

> 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:N/S:U/C:H/I:H/A:H
EXPLOITABILITY
2.2
IMPACT
5.9

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
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
None (N)
Aucune interaction utilisateur nécessaire
S (Périmètre)
Scope
Unchanged (U)
Impact reste dans le périmètre 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
High (H)
Interruption totale du service possible

> RÉSUMÉ DES IMPACTS

Confidentialité
High
Divulgation totale d'informations
Intégrité
High
Modification totale des données possible
Disponibilité
High
Interruption totale du service possible

> WEAKNESSES

CWE-345 CWE-347

> CWE DETAILED DESCRIPTIONS

CWE-345: Insufficient Verification of Data Authenticity - The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data. | CWE-347: Improper Verification of Cryptographic Signature - The product does not verify, or incorrectly verifies, the cryptographic signature for data.

> RED HAT SECURITY ADVISORIES

Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update
An update for Red Hat Hardened Images RPMs is now available.
Red Hat Security Advisory: .NET 10.0 security, bug fix, and enhancement update
An update for .NET 10.0 is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System...
Red Hat Security Advisory: .NET 9.0 security, bug fix, and enhancement update
An update for .NET 9.0 is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System...
Red Hat Security Advisory: .NET 8.0 security, bug fix, and enhancement update
An update for .NET 8.0 is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System...
Red Hat Security Advisory: .NET 8.0 security, bug fix, and enhancement update
An update for .NET 8.0 is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System...
Red Hat Security Advisory: .NET 10.0 security, bug fix, and enhancement update
An update for .NET 10.0 is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring Syste...
Red Hat Security Advisory: .NET 10.0 security, bug fix, and enhancement update
An update for .NET 10.0 is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System...
Red Hat Security Advisory: .NET 9.0 security, bug fix, and enhancement update
An update for .NET 9.0 is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System...
Red Hat Security Advisory: .NET 8.0 security, bug fix, and enhancement update
An update for .NET 8.0 is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System...
Red Hat Security Advisory: .NET 9.0 security, bug fix, and enhancement update
An update for .NET 9.0 is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System...
Red Hat Security Advisory: .NET 9.0 security, bug fix, and enhancement update
An update for .NET 9.0 is now available for Red Hat Enterprise Linux 9.6 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vul...
Red Hat Security Advisory: .NET 8.0 security, bug fix, and enhancement update
An update for .NET 8.0 is now available for Red Hat Enterprise Linux 9.6 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vul...
Red Hat Security Advisory: .NET 8.0 security, bug fix, and enhancement update
An update for .NET 8.0 is now available for Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A...
Red Hat Security Advisory: .NET 9.0 security, bug fix, and enhancement update
An update for .NET 9.0 is now available for Red Hat Enterprise Linux 10.0 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vu...
Red Hat Security Advisory: .NET 8.0 security, bug fix, and enhancement update
An update for .NET 8.0 is now available for Red Hat Enterprise Linux 10.0 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vu...

> MICROSOFT SECURITY PATCHES

Cette vulnérabilité est corrigée par les mises à jour Microsoft suivantes :

KB5099535 🔗
VENDOR FIX
Security Update KB5099535
Produit : 10852, 10853, 10816, 10855
Publié le 01/11/2026 • Bulletin 2026-Oct
KB5104034 🔗
VENDOR FIX
Security Update KB5104034
Produit : 20839, 20838
Publié le 31/10/2026 • Bulletin 2026-Jul
KB5104032 🔗
VENDOR FIX
Security Update KB5104032
Produit : 12414, 12415, 12416
Publié le 31/10/2026 • Bulletin 2026-Jul
KB5104033 🔗
VENDOR FIX
Security Update KB5104033
Produit : 12432, 12433, 12434
Publié le 31/10/2026 • Bulletin 2026-Jul
KB5101007 🔗
VENDOR FIX
Security Update KB5101007
Produit : 11650-10852, 11650-10853, 11650-10816, 11650-10855
Publié le 31/10/2026 • Bulletin 2026-Jul
KB5101011 🔗
VENDOR FIX
Security Update KB5101011
Produit : 11650-10483, 11650-10543
Publié le 31/10/2026 • Bulletin 2026-Jul
KB5101008 🔗
VENDOR FIX
Security Update KB5101008
Produit : 11676-11568, 11676-11569, 11676-11571, 11676-11572
Publié le 31/10/2026 • Bulletin 2026-Jul
KB5101009 🔗
VENDOR FIX
Security Update KB5101009
Produit : 11650-10378, 11650-10379
Publié le 31/10/2026 • Bulletin 2026-Jul
KB5101010 🔗
VENDOR FIX
Security Update KB5101010
Produit : 11676-11923, 11676-11924
Publié le 31/10/2026 • Bulletin 2026-Jul
KB5101006 🔗
VENDOR FIX
Security Update KB5101006
Produit : 11676-11929, 11676-11930, 11676-11931, 11676-12097, 11676-12098, 11676-12099
Publié le 31/10/2026 • Bulletin 2026-Jul
KB5100989 🔗
VENDOR FIX
Security Update KB5100989
Produit : 11677-11568, 11677-11569, 11677-11571, 11677-11572
Publié le 31/10/2026 • Bulletin 2026-Jul
KB5100990 🔗
VENDOR FIX
Security Update KB5100990
Produit : 11863-10378, 11863-10379
Publié le 31/10/2026 • Bulletin 2026-Jul
KB5100991 🔗
VENDOR FIX
Security Update KB5100991
Produit : 11863-10483, 11863-10543
Publié le 31/10/2026 • Bulletin 2026-Jul
KB5101005 🔗
VENDOR FIX
Security Update KB5101005
Produit : 12079-11923, 12079-11924
Publié le 31/10/2026 • Bulletin 2026-Jul
KB5101000 🔗
VENDOR FIX
Security Update KB5101000
Produit : 12079-11929, 12079-11930, 12079-11931, 12079-12097, 12079-12098, 12079-12099
Publié le 31/10/2026 • Bulletin 2026-Jul
KB5100998 🔗
VENDOR FIX
Security Update KB5100998
Produit : 12079-20437, 12079-20438
Publié le 31/10/2026 • Bulletin 2026-Jul
KB5101004 🔗
VENDOR FIX
Security Update KB5101004
Produit : 12079-12242, 12079-12243
Publié le 31/10/2026 • Bulletin 2026-Jul
KB5101001 🔗
VENDOR FIX
Security Update KB5101001
Produit : 12079-12389, 12079-12390
Publié le 31/10/2026 • Bulletin 2026-Jul
KB5101014 🔗
VENDOR FIX
Security Update KB5101014
Produit : 2472-20854, 2472-20853
Publié le 31/10/2026 • Bulletin 2026-Jul
KB5101002 🔗
VENDOR FIX
Security Update KB5101002
Produit : 12078-20854, 12078-20853
Publié le 31/10/2026 • Bulletin 2026-Jul
KB5100984 🔗
VENDOR FIX
Security Update KB5100984
Produit : 2472-10378, 2472-10379
Publié le 31/10/2026 • Bulletin 2026-Jul
KB5100985 🔗
VENDOR FIX
Security Update KB5100985
Produit : 2472-10483, 2472-10543
Publié le 31/10/2026 • Bulletin 2026-Jul
KB5101003 🔗
VENDOR FIX
Security Update KB5101003
Produit : 12079-12437, 12079-12436
Publié le 31/10/2026 • Bulletin 2026-Jul
📋 Voir tous les détails sur MSRC Update Guide →

> RED HAT SEVERITY ASSESSMENT

THREAT SEVERITY
Important

> GITHUB SECURITY ADVISORY

GHSA-g8r8-53c2-pm3f HIGH

Microsoft Security Advisory CVE-2026-47304 – .NET Security Feature Bypass Vulnerability

AFFECTED PACKAGES:
NUGET / System.Security.Cryptography.Xml
>= 8.0.0, <= 8.0.3
Fixed in: 8.0.4
NUGET / System.Security.Cryptography.Xml
>= 9.0.0, <= 9.0.17
Fixed in: 9.0.18
NUGET / System.Security.Cryptography.Xml
>= 10.0.0, <= 10.0.9
Fixed in: 10.0.10

> HISTORIQUE DES MODIFICATIONS

Première apparition
14/07/2026 19:17
Source: NVD
📊 ENRICHISSEMENT 01/08/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-345: Insufficient Verification of Data Authenticity - The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data. | CWE-347: Improp...
📊 ENRICHISSEMENT 19/07/2026 05:00
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
N/A
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 19/07/2026 05:00
REDHAT
Champ modifié: Red Hat
Ancienne valeur:
Non
Nouvelle valeur:
Oui
Total des modifications: 3 Dernière mise à jour: 3 months ago

> REFERENCES

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47304
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