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High

Denial of service vulnerability exists when .NET and .NET Core improperly process XML documents

  • Disclosed: 16.10.2018
  • Updated: 11.10.2026 11:22

A denial of service vulnerability exists when .NET and .NET Core improperly process XML documents, aka ".NET and .NET Core Denial of Service Vulnerability." This affects Microsoft .NET Framework 2.0, Microsoft .NET Framework 3.0, Microsoft .NET Framework 4.7.1, Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1, Microsoft .NET Framework 4.5.2, Microsoft .NET Framework 4.7/4.7.1, Microsoft .NET Framework 4.6, Microsoft .NET Framework 3.5, Microsoft .NET Framework 3.5.1, Microsoft .NET Framework 4.6/4.6.1/4.6.2, Microsoft .NET Framework 4.6.2/4.7/4.7.1, .NET Core 2.0, Microsoft .NET Framework 4.7.2.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
.NET (NuGet) System.Security.Cryptography.Xml < 4.4.2 4.4.2

References

CVSS score 7.5/10
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE)
CWE-611
Platform
.NET (NuGet)
Package
System.Security.Cryptography.Xml
Disclosed
16.10.2018
Updated
11.10.2026 11:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-35hc-x2cw-2j4v - CC BY 4.0

Vulnerability history: System.Security.Cryptography.Xml

All published vulnerabilities of this package (.NET (NuGet)), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (14) in the archive
Total entries
14
First → latest
10.2018 10.2026
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • High 13
  • Medium 1

Disclosures per year

Severity:
  1. Microsoft Security Advisory CVE-2026-96959 - .NET and Visual Studio Denial of Service Vulnerability
    High · 7.5 CVE-2026-96959 >= 10.0.0, < 10.0.13, >= 11.0.0-preview.1, < 11.0.0-rc.2, >= 8.0.0, < 8.0.5, >= 9.0.0, < 9.0.21 10.0.13, 11.0.0-rc.2, 8.0.5, 9.0.21
  2. Microsoft Security Advisory CVE-2026-96222 - .NET Spoofing Vulnerability
    High · 7.4 CVE-2026-96222 >= 8.0.0, < 8.0.5 8.0.5
  3. Microsoft Security Advisory CVE-2026-96960 - .NET and Visual Studio Denial of Service Vulnerability
    High · 7.5 CVE-2026-96960 >= 10.0.0, < 10.0.13, >= 11.0.0-preview.1, < 11.0.0-rc.2, >= 8.0.0, < 8.0.5, >= 9.0.0, < 9.0.21 10.0.13, 11.0.0-rc.2, 8.0.5, 9.0.21
  4. Microsoft Security Advisory CVE-2026-32203 – .NET and Visual Studio Denial of Service Vulnerability
    High · 7.5 CVE-2026-32203 >= 10.0.0, < 10.0.6, >= 9.0.0, < 9.0.15, >= 8.0.0, < 8.0.3 10.0.6, 9.0.15, 8.0.3
  5. Microsoft Security Advisory CVE-2026-50527 – .NET Denial of Service Vulnerability
    High · 7.5 CVE-2026-50527 >= 10.0.0, < 10.0.10, >= 9.0.0, < 9.0.18, >= 8.0.0, < 8.0.4 10.0.10, 9.0.18, 8.0.4
  6. Microsoft Security Advisory CVE-2026-50525 – .NET Denial of Service Vulnerability
    High · 7.5 CVE-2026-50525 >= 10.0.0, < 10.0.10, >= 9.0.0, < 9.0.18, >= 8.0.0, < 8.0.4 10.0.10, 9.0.18, 8.0.4
  7. Microsoft Security Advisory CVE-2026-50648 – .NET Denial of Service Vulnerability
    High · 7.5 CVE-2026-50648 >= 10.0.0, < 10.0.10, >= 9.0.0, < 9.0.18, >= 8.0.0, < 8.0.4 10.0.10, 9.0.18, 8.0.4
  8. Microsoft Security Advisory CVE-2026-47304 – .NET Security Feature Bypass Vulnerability
    High · 8.1 CVE-2026-47304 >= 10.0.0, < 10.0.10, >= 9.0.0, < 9.0.18, >= 8.0.0, < 8.0.4 10.0.10, 9.0.18, 8.0.4
  9. Microsoft Security Advisory CVE-2026-47302 – .NET Denial of Service Vulnerability
    High · 7.5 CVE-2026-47302 >= 10.0.0, < 10.0.10, >= 9.0.0, < 9.0.18, >= 8.0.0, < 8.0.4 10.0.10, 9.0.18, 8.0.4
  10. Microsoft Security Advisory CVE-2026-26171 – .NET Denial of Service Vulnerability
    High · 7.5 CVE-2026-26171 >= 10.0.0, < 10.0.6, >= 9.0.0, < 9.0.15, >= 8.0.0, < 8.0.3 10.0.6, 9.0.15, 8.0.3
  11. Microsoft Security Advisory CVE-2026-33116 – .NET, .NET Framework, and Visual Studio Denial of Service Vulnerability
    High · 7.5 CVE-2026-33116 >= 10.0.0, < 10.0.6, >= 9.0.0, < 9.0.15, >= 8.0.0, < 8.0.3 10.0.6, 9.0.15, 8.0.3
  12. Denial of service vulnerability exists when .NET and .NET Core improperly process XML documents this entry
    High · 7.5 CVE-2018-0765 < 4.4.2 4.4.2
  13. Denial of service vulnerability exists when .NET and .NET Core improperly process XML documents
    High · 7.5 CVE-2018-0764 < 4.4.2 4.4.2

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