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.NET NuGet

CVE-2022-34716

MEDIUM

CVE-2022-34716 is a medium-severity (CVSS 5.9) CWE-290 vulnerability in System.Security.Cryptography.Xml. O3 Security confirms whether CVE-2022-34716 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

.NET Information Disclosure Vulnerability

Also known asBIT-dotnet-2022-34716BIT-dotnet-sdk-2022-34716BIT-powershell-2022-34716GHSA-vh55-786g-wjwj
Published
Aug 9, 2022
Updated
Jul 9, 2026
Affected
25 pkgs
Patched
25 / 25
Exploits
None indexed

Blast Radius

25 pkgs affected
.NETSystem.Security.Cryptography.Xml.NETSystem.Security.Cryptography.Xml.NETMicrosoft.AspNetCore.App.Runtime.win-x64.NETMicrosoft.AspNetCore.App.Runtime.win-x64.NETMicrosoft.AspNetCore.App.Runtime.linux-x64.NETMicrosoft.AspNetCore.App.Runtime.linux-x64.NETMicrosoft.AspNetCore.App.Runtime.win-x86.NETMicrosoft.AspNetCore.App.Runtime.win-x86+17 more

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects NuGet packages — download data is not available via public APIs for these ecosystems.

Description

.NET Spoofing Vulnerability

Affected Packages

25 total 25 fixed
EcosystemPackageVulnerable rangeFix
.NETNuGetSystem.Security.Cryptography.Xmlall versions4.7.1
.NETNuGetSystem.Security.Cryptography.Xml5.0.0&&< 6.0.16.0.1
.NETNuGetMicrosoft.AspNetCore.App.Runtime.win-x643.1.0&&< 3.1.283.1.28
.NETNuGetMicrosoft.AspNetCore.App.Runtime.win-x646.0.0&&< 6.0.86.0.8
.NETNuGetMicrosoft.AspNetCore.App.Runtime.linux-x643.1.0&&< 3.1.283.1.28
.NETNuGetMicrosoft.AspNetCore.App.Runtime.linux-x646.0.0&&< 6.0.86.0.8

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for System.Security.Cryptography.Xml. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update System.Security.Cryptography.Xml to 4.7.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-34716 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 pinpoints whether CVE-2022-34716 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to CVE-2022-34716. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

.NET Spoofing Vulnerability
O3 Security · Impact-Aware SCA

Is CVE-2022-34716 in your dependencies?

O3 detects CVE-2022-34716 across NuGet dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.