How severe is GHSA-3cf7-7wq6-8842?

GHSA-3cf7-7wq6-8842 has a CVSS score of 7.5/10, rated HIGH. Immediate patching is strongly recommended.

Which packages are affected by GHSA-3cf7-7wq6-8842?

GHSA-3cf7-7wq6-8842 affects the following packages: Microsoft.AspNetCore.App.Runtime.linux-arm (NuGet), Microsoft.AspNetCore.App.Runtime.linux-arm64 (NuGet), Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 (NuGet), Microsoft.AspNetCore.App.Runtime.linux-musl-x64 (NuGet), Microsoft.AspNetCore.App.Runtime.linux-x64 (NuGet), Microsoft.AspNetCore.App.Runtime.osx-x64 (NuGet), Microsoft.AspNetCore.App.Runtime.win-arm (NuGet), Microsoft.AspNetCore.App.Runtime.win-x64 (NuGet), and 1 more. Ecosystems affected: NuGet.

How do I fix GHSA-3cf7-7wq6-8842?

Update Microsoft.AspNetCore.App.Runtime.linux-arm to 3.1.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-3cf7-7wq6-8842 is resolved across your whole dependency graph.

How do I detect GHSA-3cf7-7wq6-8842 in my NuGet dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for Microsoft.AspNetCore.App.Runtime.linux-arm. 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.

How do I mitigate GHSA-3cf7-7wq6-8842 if there is no patch (or I can't update yet)?

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.

How does O3 Security protect against GHSA-3cf7-7wq6-8842?

O3 pinpoints whether GHSA-3cf7-7wq6-8842 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Is GHSA-3cf7-7wq6-8842 actively exploited in the wild?

No public exploit code has been indexed for GHSA-3cf7-7wq6-8842 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for GHSA-3cf7-7wq6-8842?

GHSA-3cf7-7wq6-8842 has an EPSS (Exploit Prediction Scoring System) score of 5.7%, placing it in the 92th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

When was GHSA-3cf7-7wq6-8842 published, and has it been updated?

GHSA-3cf7-7wq6-8842 was published on May 24, 2022 and was last updated on December 6, 2023. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

.NET NuGet

GHSA-3cf7-7wq6-8842

HIGH

ASP.NET Core Denial of Service Vulnerability

Also known asBIT-aspnet-core-2020-1161CVE-2020-1161

Published

May 24, 2022

Updated

Dec 6, 2023

Affected

9 pkgs

Patched

9 / 9

Exploits

None indexed

EPSS Exploitation Probability

via FIRST.org ↗

5.7%probability of exploitation in next 30 days

Lower Risk92th percentile+1.57%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Blast Radius

9 pkgs affected

.NETMicrosoft.AspNetCore.App.Runtime.linux-arm.NETMicrosoft.AspNetCore.App.Runtime.linux-arm64.NETMicrosoft.AspNetCore.App.Runtime.linux-musl-arm64.NETMicrosoft.AspNetCore.App.Runtime.linux-musl-x64.NETMicrosoft.AspNetCore.App.Runtime.linux-x64.NETMicrosoft.AspNetCore.App.Runtime.osx-x64.NETMicrosoft.AspNetCore.App.Runtime.win-arm.NETMicrosoft.AspNetCore.App.Runtime.win-x64+1 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

A denial of service vulnerability exists when ASP.NET Core improperly handles web requests, aka 'ASP.NET Core Denial of Service Vulnerability'.

Affected Packages

9 total 9 fixed

Ecosystem	Package	Vulnerable range	Fix
.NETNuGet	`Microsoft.AspNetCore.App.Runtime.linux-arm`	≥ 3.1.0&&< 3.1.4	3.1.4
.NETNuGet	`Microsoft.AspNetCore.App.Runtime.linux-arm64`	≥ 3.1.0&&< 3.1.4	3.1.4
.NETNuGet	`Microsoft.AspNetCore.App.Runtime.linux-musl-arm64`	≥ 3.1.0&&< 3.1.4	3.1.4
.NETNuGet	`Microsoft.AspNetCore.App.Runtime.linux-musl-x64`	≥ 3.1.0&&< 3.1.4	3.1.4
.NETNuGet	`Microsoft.AspNetCore.App.Runtime.linux-x64`	≥ 3.1.0&&< 3.1.4	3.1.4
.NETNuGet	`Microsoft.AspNetCore.App.Runtime.osx-x64`	≥ 3.1.0&&< 3.1.4	3.1.4

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for Microsoft.AspNetCore.App.Runtime.linux-arm. 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.
Fix
Update Microsoft.AspNetCore.App.Runtime.linux-arm to 3.1.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-3cf7-7wq6-8842 is resolved across your whole dependency graph.
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.
How O3 protects you
O3 pinpoints whether GHSA-3cf7-7wq6-8842 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 GHSA-3cf7-7wq6-8842. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

A denial of service vulnerability exists when ASP.NET Core improperly handles web requests, aka 'ASP.NET Core Denial of Service Vulnerability'.

O3 Security · Impact-Aware SCA

Is GHSA-3cf7-7wq6-8842 in your dependencies?

O3 detects GHSA-3cf7-7wq6-8842 across NuGet dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

Scan my dependencies How O3 SCA works