Microsoft Security Advisory CVE-2024-30045 | .NET Remote code Execution Vulnerability

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

6.3 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

EPSS

• CVE-2024-30045: 1.25% estimated exploitation activity in the next 30 days; percentile 69.38 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Microsoft Security Advisory CVE-2024-30045 | .NET Remote code Execution Vulnerability <a name="executive-summary"</aExecutive summary Microsoft is releasing this security advisory to provide information about a vulnerability in .NET. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability. A Remote Code Execution vulnerability exists in .NET 7.0 and .NET 8.0 where a stack buffer overrun occurs in .NET Double Parse routine. Discussion Discussion for this issue can be found at https://github.com/dotnet/runtime/issues/102206 <a name="mitigation-factors"</aMitigation factors Microsoft has not identified any mitigating factors for this vulnerability. <a name="affected-software"</aAffected software Any .NET 7.0 application running on .NET 7.0.18 or earlier. Any .NET 8.0 application running on .NET 8.0.4 or earlier. <a name="affected-packages"</aAffected Packages The vulnerability affects any Microsoft .NET Core project if it…

Published by the source

14 May 2024, 20:30 UTC

Last modified by the source

22 Nov 2024, 12:40 UTC

Source last checked

26 Oct 2026, 17:00 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-7fcr-8qw6-92fr

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# Patch Next advisory brief: CVE-2024-30045

Advisory: Microsoft Security Advisory CVE-2024-30045 | .NET Remote code Execution Vulnerability
IDs: CVE-2024-30045, GHSA-7fcr-8qw6-92fr
Record: https://patchnext.com/advisories/cve-2024-30045 (revision 1, source checked 26 Oct 2026, 17:00 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 6.3)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: microsoft.netcore.app.runtime.win-x86 8.0.5, 7.0.19; microsoft.netcore.app.runtime.win-arm64 8.0.5, 7.0.19; microsoft.netcore.app.runtime.linux-musl-x64 8.0.5, 7.0.19; microsoft.netcore.app.runtime.linux-arm64 8.0.5, 7.0.19; microsoft.netcore.app.runtime.linux-arm 8.0.5, 7.0.19; microsoft.netcore.app.runtime.osx-x64 8.0.5, 7.0.19; microsoft.netcore.app.runtime.linux-x64 8.0.5, 7.0.19; microsoft.netcore.app.runtime.osx-arm64 8.0.5, 7.0.19; microsoft.netcore.app.runtime.linux-musl-arm 8.0.5, 7.0.19; microsoft.netcore.app.runtime.win-arm 8.0.5, 7.0.19; microsoft.netcore.app.runtime.linux-musl-arm64 8.0.5, 7.0.19; microsoft.netcore.app.runtime.win-x64 8.0.5, 7.0.19. A vendor fix does not mean a deployment is fixed.

## Affected components
- NuGet microsoft.netcore.app.runtime.win-x86: affected >= 8.0.0, <= 8.0.4; >= 7.0.0, <= 7.0.18; fixed in 7.0.19, 8.0.5
- NuGet microsoft.netcore.app.runtime.win-arm64: affected >= 8.0.0, <= 8.0.4; >= 7.0.0, <= 7.0.18; fixed in 7.0.19, 8.0.5
- NuGet microsoft.netcore.app.runtime.linux-musl-x64: affected >= 8.0.0, <= 8.0.4; >= 7.0.0, <= 7.0.18; fixed in 7.0.19, 8.0.5
- NuGet microsoft.netcore.app.runtime.linux-arm64: affected >= 8.0.0, <= 8.0.4; >= 7.0.0, <= 7.0.18; fixed in 7.0.19, 8.0.5
- NuGet microsoft.netcore.app.runtime.linux-arm: affected >= 8.0.0, <= 8.0.4; >= 7.0.0, <= 7.0.18; fixed in 7.0.19, 8.0.5
- NuGet microsoft.netcore.app.runtime.osx-x64: affected >= 8.0.0, <= 8.0.4; >= 7.0.0, <= 7.0.18; fixed in 7.0.19, 8.0.5
- NuGet microsoft.netcore.app.runtime.linux-x64: affected >= 8.0.0, <= 8.0.4; >= 7.0.0, <= 7.0.18; fixed in 7.0.19, 8.0.5
- NuGet microsoft.netcore.app.runtime.osx-arm64: affected >= 8.0.0, <= 8.0.4; >= 7.0.0, <= 7.0.18; fixed in 7.0.19, 8.0.5
- NuGet microsoft.netcore.app.runtime.linux-musl-arm: affected >= 8.0.0, <= 8.0.4; >= 7.0.0, <= 7.0.18; fixed in 7.0.19, 8.0.5
- NuGet microsoft.netcore.app.runtime.win-arm: affected >= 8.0.0, <= 8.0.4; >= 7.0.0, <= 7.0.18; fixed in 7.0.19, 8.0.5
- NuGet microsoft.netcore.app.runtime.linux-musl-arm64: affected >= 8.0.0, <= 8.0.4; >= 7.0.0, <= 7.0.18; fixed in 7.0.19, 8.0.5
- NuGet microsoft.netcore.app.runtime.win-x64: affected >= 8.0.0, <= 8.0.4; >= 7.0.0, <= 7.0.18; fixed in 7.0.19, 8.0.5

## Suggested inspection (read-only)
- NuGet microsoft.netcore.app.runtime.win-x86: check the installed version with your package manager.
- NuGet microsoft.netcore.app.runtime.win-arm64: check the installed version with your package manager.
- NuGet microsoft.netcore.app.runtime.linux-musl-x64: check the installed version with your package manager.
- NuGet microsoft.netcore.app.runtime.linux-arm64: check the installed version with your package manager.
- NuGet microsoft.netcore.app.runtime.linux-arm: check the installed version with your package manager.
- NuGet microsoft.netcore.app.runtime.osx-x64: check the installed version with your package manager.
- NuGet microsoft.netcore.app.runtime.linux-x64: check the installed version with your package manager.
- NuGet microsoft.netcore.app.runtime.osx-arm64: check the installed version with your package manager.
- NuGet microsoft.netcore.app.runtime.linux-musl-arm: check the installed version with your package manager.
- NuGet microsoft.netcore.app.runtime.win-arm: check the installed version with your package manager.
- NuGet microsoft.netcore.app.runtime.linux-musl-arm64: check the installed version with your package manager.
- NuGet microsoft.netcore.app.runtime.win-x64: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on microsoft.netcore.app.runtime.win-x86, microsoft.netcore.app.runtime.win-arm64, microsoft.netcore.app.runtime.linux-musl-x64, microsoft.netcore.app.runtime.linux-arm64, microsoft.netcore.app.runtime.linux-arm, microsoft.netcore.app.runtime.osx-x64, microsoft.netcore.app.runtime.linux-x64, microsoft.netcore.app.runtime.osx-arm64, microsoft.netcore.app.runtime.linux-musl-arm, microsoft.netcore.app.runtime.win-arm, microsoft.netcore.app.runtime.linux-musl-arm64, microsoft.netcore.app.runtime.win-x64.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-7fcr-8qw6-92fr (GitHub-reviewed advisory GHSA-7fcr-8qw6-92fr lists affected ranges: NuGet microsoft.netcore.app.runtime.linux-arm >=8.0.0 =7.0.0 =8.0.0 =7.0.0 =8.0.0 =7.0.0 =8.0.0 =7.0.0 =8.0.0 =7.0.0 <=7.0.18; NuGet…)

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