GHSA-987x-96fq-9384: Duplicate Advisory Microsoft Security Advisory CVE-2025-55248: .NET Vulnerability

MODERATE
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CVSS 4.8
CWE-326
Published
Advisory Summary

GHSA-987x-96fq-9384 is a MODERATE (CVSS 4.8) microsoft security advisory cve-2025-55248: .net vulnerability (CWE-326: Inadequate Encryption Strength) affecting Duplicate Advisory libraries in the NuGet ecosystem. The issue involves microsoft security advisory cve-2025-55248: .net information disclosure vulnerability. Remediation is available by upgrading affected packages to version 9.0.10.

GHSA-987x-96fq-9384 at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-987x-96fq-9384
Severity MODERATE
CVSS v3.1 Base Score 4.8
CWE Classification CWE-326: Inadequate Encryption Strength
Affected Product Duplicate Advisory
Package Ecosystem NuGet
Published Date
Last Updated

Security Impact

CVSS: 4.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N).

Attack Vector Network (AV:N)
Attack Complexity High (AC:H)
Privileges Required Low (PR:L)
User Interaction Required (UI:R)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity None (I:N)
Availability None (A:N)

How to Fix GHSA-987x-96fq-9384

To remediate this vulnerability, upgrade all affected Duplicate Advisory dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

Microsoft.NetCore.App.Runtime.linux-arm fixed: 9.0.10 
Upgrade Microsoft.NetCore.App.Runtime.linux-arm to 9.0.10
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for Microsoft.NetCore.App.Runtime.linux-arm

How to Check if You Are Affected

To determine whether your application is affected by GHSA-987x-96fq-9384, inspect your project dependencies for Duplicate Advisory:

inspect dependencies for Microsoft.NetCore.App.Runtime.linux-arm

Analyze the terminal output to locate any version of Duplicate Advisory in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 9.0.10), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-326: Inadequate Encryption Strength, where the product stores or transmits sensitive data using an encryption scheme that is theoretically sound, but is not strong enough for the level of protection required. In Duplicate Advisory, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-gwq6-fmvp-qp68. This link is maintained to preserve external references. ### Original Description Inadequate encryption strength in .NET, .NET Framework, Visual Studio allows an authorized attacker to disclose information over a network.

GHSA-987x-96fq-9384 Affected Duplicate Advisory Versions

1 component(s)
Fixed Versions:
9.0.10
Product / Package Ecosystem Affected Versions Fixed Version
Microsoft.NetCore.App.Runtime.linux-arm
nuget/Microsoft.NetCore.App.Runtime.linux-arm
NuGet
≥ 9.0.0
< 9.0.10
9.0.10

References

NVD — GHSA-987x-96fq-9384 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-55248
msrc.microsoft.com/update-guide/vulner... WEB
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55248

Frequently Asked Questions

What is GHSA-987x-96fq-9384?
GHSA-987x-96fq-9384 is a security vulnerability in Duplicate Advisory involving Microsoft Security Advisory CVE-2025-55248: .NET Information Disclosure Vulnerability under CWE-326: Inadequate Encryption Strength.
Which Duplicate Advisory versions are affected?
Affected versions include releases prior to 9.0.10 across affected packages: Microsoft.NetCore.App.Runtime.linux-arm.
What version fixes GHSA-987x-96fq-9384?
Upgrading to 9.0.10 (or the latest patched release for your respective branch) resolves the vulnerability.
Is Microsoft.NetCore.App.Runtime.linux-arm affected?
Yes, Microsoft.NetCore.App.Runtime.linux-arm is affected in releases prior to 9.0.10. Upgrade your dependency to 9.0.10 or later.
What is the CVSS score of GHSA-987x-96fq-9384?
GHSA-987x-96fq-9384 has a CVSS v3.1 base score of 4.8 (MODERATE) with vector string CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N.
What CWE is associated with GHSA-987x-96fq-9384?
GHSA-987x-96fq-9384 is classified under CWE-326: Inadequate Encryption Strength (The product stores or transmits sensitive data using an encryption scheme that is theoretically sound, but is not strong enough for the level of protection required.).
How can I check NuGet dependencies for GHSA-987x-96fq-9384?
Run the dependency tree command: 'inspect dependencies for Microsoft.NetCore.App.Runtime.linux-arm'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-987x-96fq-9384",
  "modified" : "2025-10-15T17:38:42Z",
  "published" : "2025-10-14T18:30:30Z",
  "withdrawn" : "2025-10-15T17:38:42Z",
  "aliases" : [ ],
  "summary" : "Duplicate Advisory: Microsoft Security Advisory CVE-2025-55248: .NET Information Disclosure Vulnerability",
  "details" : "### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-gwq6-fmvp-qp68. This link is maintained to preserve external references.\n\n### Original Description\nInadequate encryption strength in .NET, .NET Framework, Visual Studio allows an authorized attacker to disclose information over a network.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "NuGet",
      "name" : "Microsoft.NetCore.App.Runtime.linux-arm"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "9.0.0"
      }, {
        "fixed" : "9.0.10"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-55248"
  }, {
    "type" : "WEB",
    "url" : "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55248"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-326" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-10-15T17:38:42Z",
    "nvd_published_at" : "2025-10-14T17:15:44Z"
  }
}