> CVE-2026-50527 [HIGH]

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PUBLISHED
2026-07-14 20:17
MODIFIED
2026-07-14 21:17
CVSS_SCORE V3
7.5
EPSS (Prob. Exploit)
1.17%
Top 32.5%
DATA SOURCES:
NVD 🔗 2026-07-14 RED HAT 🔗 2026-07-19 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-11-01 GITHUB 🔗 2026-11-05 MSRC 🔗 2026-11-02

> DESCRIPTION

Stack-based buffer overflow in .NET Framework allows an unauthorized attacker to deny service over a network.

> AFFECTED_PRODUCTS

Red Hat - Red Hat Hardened Images

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EXPLOITABILITY
3.9
IMPACT
3.6

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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
Low (L)
Peu de conditions requises 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
None (N)
Aucune divulgation d'informations
I (Impact Intégrité)
Integrity Impact
None (N)
Aucune modification de données possible
A (Impact Disponibilité)
Availability Impact
High (H)
Interruption totale du service possible

> RÉSUMÉ DES IMPACTS

Confidentialité
None
Aucune divulgation d'informations
Intégrité
None
Aucune modification de données possible
Disponibilité
High
Interruption totale du service possible

> WEAKNESSES

CWE-121

> CWE DETAILED DESCRIPTIONS

CWE-121: Stack-based Buffer Overflow - The product writes past the end of a buffer that was allocated on the stack.

> 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 :

Security Update KB5087065
Produit : 11650-10853, 11650-10816
Publié le 31/10/2026 • Bulletin 2026-May
Security Update KB5087067
Produit : 11650-10378
Publié le 31/10/2026 • Bulletin 2026-May
Security Update KB5087069
Produit : 11650-10483
Publié le 31/10/2026 • Bulletin 2026-May
Security Update KB5087066
Produit : 11676-11569, 11676-11570
Publié le 31/10/2026 • Bulletin 2026-May
Security Update KB5087068
Produit : 11676-11923
Publié le 31/10/2026 • Bulletin 2026-May
Security Update KB5087064
Produit : 11676-11930, 11676-11931, 11676-12097, 11676-12098
Publié le 31/10/2026 • Bulletin 2026-May
Security Update KB5087061
Produit : 11677-11569, 11677-11570
Publié le 31/10/2026 • Bulletin 2026-May
Security Update KB5087062
Produit : 11863-10378
Publié le 31/10/2026 • Bulletin 2026-May
Security Update KB5087063
Produit : 11650-10483
Publié le 31/10/2026 • Bulletin 2026-May
Security Update KB5087059
Produit : 12079-11923
Publié le 31/10/2026 • Bulletin 2026-May
Security Update KB5087053
Produit : 12079-11930, 12079-11931
Publié le 31/10/2026 • Bulletin 2026-May
Security Update KB5087058
Produit : 12079-12242, 12079-12243
Publié le 31/10/2026 • Bulletin 2026-May
Security Update KB5087048
Produit : 2472-10378
Publié le 31/10/2026 • Bulletin 2026-May
Security Update KB5087049
Produit : 2472-10483
Publié le 31/10/2026 • Bulletin 2026-May
Security Update KB5087537
Produit : 10852, 10853, 10816, 10855
Publié le 31/10/2026 • Bulletin 2026-May
Security Update KB5099535
Produit : 10852, 10853, 10816, 10855
Publié le 01/11/2026 • Bulletin 2026-Oct
Security Update KB5104034
Produit : 20839, 20838
Publié le 31/10/2026 • Bulletin 2026-Jul
Security Update KB5104032
Produit : 12414, 12415, 12416
Publié le 31/10/2026 • Bulletin 2026-Jul
Security Update KB5104033
Produit : 12432, 12433, 12434
Publié le 31/10/2026 • Bulletin 2026-Jul
Security Update KB5087057
Produit : 12079-12437, 12079-12436
Publié le 14/07/2026 • Bulletin 2026-Jul
Security Update KB5092427
Produit : 12079-20437, 12079-20438
Publié le 14/07/2026 • Bulletin 2026-Jul
Security Update KB5092430
Produit : 12079-12389, 12079-12390
Publié le 14/07/2026 • Bulletin 2026-Jul
Security Update KB5087077
Produit : 12079-20854, 12079-20853
Publié le 14/07/2026 • Bulletin 2026-Jul
Security Update KB5092431
Produit : 12079-20854, 12079-20853
Publié le 14/07/2026 • Bulletin 2026-Jul
Security Update KB5101007
Produit : 11650-10852, 11650-10853, 11650-10816, 11650-10855
Publié le 31/10/2026 • Bulletin 2026-Jul
Security Update KB5101011
Produit : 11650-10483, 11650-10543
Publié le 31/10/2026 • Bulletin 2026-Jul
Security Update KB5101008
Produit : 11676-11568, 11676-11569, 11676-11571, 11676-11572
Publié le 31/10/2026 • Bulletin 2026-Jul
Security Update KB5101009
Produit : 11650-10378, 11650-10379
Publié le 31/10/2026 • Bulletin 2026-Jul
Security Update KB5101010
Produit : 11676-11923, 11676-11924
Publié le 31/10/2026 • Bulletin 2026-Jul
Security Update KB5101006
Produit : 11676-11929, 11676-11930, 11676-11931, 11676-12097, 11676-12098, 11676-12099
Publié le 31/10/2026 • Bulletin 2026-Jul
Security Update KB5100989
Produit : 11677-11568, 11677-11569, 11677-11571, 11677-11572
Publié le 31/10/2026 • Bulletin 2026-Jul
Security Update KB5100990
Produit : 11863-10378, 11863-10379
Publié le 31/10/2026 • Bulletin 2026-Jul
Security Update KB5100991
Produit : 11863-10483, 11863-10543
Publié le 31/10/2026 • Bulletin 2026-Jul
Security Update KB5101005
Produit : 12079-11923, 12079-11924
Publié le 31/10/2026 • Bulletin 2026-Jul
Security Update KB5101000
Produit : 12079-11929, 12079-11930, 12079-11931, 12079-12097, 12079-12098, 12079-12099
Publié le 31/10/2026 • Bulletin 2026-Jul
Security Update KB5100998
Produit : 12079-20437, 12079-20438
Publié le 31/10/2026 • Bulletin 2026-Jul
Security Update KB5101004
Produit : 12079-12242, 12079-12243
Publié le 31/10/2026 • Bulletin 2026-Jul
Security Update KB5101001
Produit : 12079-12389, 12079-12390
Publié le 31/10/2026 • Bulletin 2026-Jul
Security Update KB5101014
Produit : 2472-20854, 2472-20853
Publié le 31/10/2026 • Bulletin 2026-Jul
Security Update KB5101002
Produit : 12078-20854, 12078-20853
Publié le 31/10/2026 • Bulletin 2026-Jul
Security Update KB5100984
Produit : 2472-10378, 2472-10379
Publié le 31/10/2026 • Bulletin 2026-Jul
Security Update KB5100985
Produit : 2472-10483, 2472-10543
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-mmjf-rqrv-855v HIGH

Microsoft Security Advisory CVE-2026-50527 – .NET Denial of Service 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 20:17
Source: NVD
📊 ENRICHISSEMENT 01/11/2026 06:59
CWE
Champ modifié: Description CWE
Ancienne valeur:
CWE-121: Stack-based Buffer Overflow - A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a para...
Nouvelle valeur:
CWE-121: Stack-based Buffer Overflow - The product writes past the end of a buffer that was allocated on the stack.
📊 ENRICHISSEMENT 01/08/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-121: Stack-based Buffer Overflow - A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a para...
📊 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: 4 Dernière mise à jour: 5 days ago

> REFERENCES

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50527
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