github - ghsa-q8g5-rw97-f55h

GHSA-Q8G5-RW97-F55H

Vulnerability from github – Published: 2025-10-14 18:30 – Updated: 2025-10-15 17:28

Summary

Duplicate Advisory: Microsoft Security Advisory CVE-2025-55247 | .NET Denial of Service Vulnerability

Details

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-w3q9-fxm7-j8fq. This link is maintained to preserve external references.

Original Description

Improper link resolution before file access ('link following') in .NET allows an authorized attacker to elevate privileges locally.

Severity ?

7.3 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

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{
  "affected": [
    {
      "package": {
        "ecosystem": "NuGet",
        "name": "Microsoft.Build.Tasks.Core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "17.15.0-preview-25277-114"
            },
            {
              "fixed": "18.0.0-preview-25476-107"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "17.15.0-preview-25277-114"
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-59"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-10-15T17:28:01Z",
    "nvd_published_at": "2025-10-14T17:15:44Z",
    "severity": "HIGH"
  },
  "details": "### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-w3q9-fxm7-j8fq. This link is maintained to preserve external references.\n\n### Original Description\nImproper link resolution before file access (\u0027link following\u0027) in .NET allows an authorized attacker to elevate privileges locally.",
  "id": "GHSA-q8g5-rw97-f55h",
  "modified": "2025-10-15T17:28:01Z",
  "published": "2025-10-14T18:30:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-55247"
    },
    {
      "type": "WEB",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55247"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Duplicate Advisory: Microsoft Security Advisory CVE-2025-55247 | .NET Denial of Service Vulnerability",
  "withdrawn": "2025-10-15T17:28:01Z"
}

CVE-2025-55247 (GCVE-0-2025-55247)

Vulnerability from cvelistv5 – Published: 2025-10-14 17:00 – Updated: 2025-12-11 19:34

Title

.NET Elevation of Privilege Vulnerability

Summary

Improper link resolution before file access ('link following') in .NET allows an authorized attacker to elevate privileges locally.

Severity ?

7.3 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

CWE

CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Assigner

microsoft

References

URL

Tags

https://msrc.microsoft.com/update-guide/vulnerabi…

vendor-advisory

Impacted products

Vendor

Product

Version

Microsoft

.NET 8.0

Affected: 8.0.0 , < 8.0.21 (custom)

Microsoft

.NET 9.0

Affected: 9.0.0 , < 9.0.10 (custom)

Show details on NVD website

JSON

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                "timestamp": "2025-10-15T13:49:15.190184Z",
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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

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