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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 11:23

Microsoft .NET Framework 1.1, 2.0, 3.0, 3.5, 3.5.1, 4, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2 and 5.7 and .NET Core 1.0. 1.1 and 2.0 allow a denial of service vulnerability due to the way XML documents are processed, aka ".NET and .NET Core Denial Of Service Vulnerability". This CVE is unique from CVE-2018-0765.

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)
-
Platform
.NET (NuGet)
Package
System.Security.Cryptography.Xml
Disclosed
16.10.2018
Updated
11.10.2026 11:23

Sources and licenses

OSV / GitHub Advisory Database - GHSA-rr3c-f55v-qhv5 - 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
    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 this entry
    High · 7.5 CVE-2018-0764 < 4.4.2 4.4.2

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