FKIE_CVE-2025-36855

Vulnerability from fkie_nvd - Published: 2025-09-08 14:15 - Updated: 2025-09-08 16:25
Severity ?
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
A vulnerability ( CVE-2025-21176 https://www.cve.org/CVERecord ) exists in DiaSymReader.dll due to buffer over-read. Per CWE-126: Buffer Over-read https://cwe.mitre.org/data/definitions/126.html , Buffer Over-read is when a product reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer. This issue affects EOL ASP.NET 6.0.0 <= 6.0.36 as represented in this CVE, as well as 8.0.0 <= 8.0.11 & <= 9.0.0 as represented in CVE-2025-21176. Additionally, if you've deployed self-contained applications https://docs.microsoft.com/dotnet/core/deploying/#self-contained-deployments-scd  targeting any of the impacted versions, these applications are also vulnerable and must be recompiled and redeployed. NOTE: This CVE affects only End Of Life (EOL) software components. The vendor, Microsoft, has indicated there will be no future updates nor support provided upon inquiry.
References
36c7be3b-2937-45df-85ea-ca7133ea542chttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21176
36c7be3b-2937-45df-85ea-ca7133ea542chttps://www.herodevs.com/vulnerability-directory/cve-2025-21176
Impacted products
Vendor Product Version
To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability ( CVE-2025-21176 https://www.cve.org/CVERecord ) exists in DiaSymReader.dll\u00a0due to buffer over-read.\n\n Per  CWE-126: Buffer Over-read https://cwe.mitre.org/data/definitions/126.html , Buffer Over-read is when a product reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer.\n\n  This issue affects EOL ASP.NET 6.0.0 \u003c= 6.0.36 as represented in this CVE, as well as 8.0.0 \u003c= 8.0.11 \u0026 \u003c= 9.0.0 as represented in\u00a0CVE-2025-21176.\n\n \n\n Additionally, if you\u0027ve deployed  self-contained applications https://docs.microsoft.com/dotnet/core/deploying/#self-contained-deployments-scd \u00a0targeting any of the impacted versions, these applications are also vulnerable and must be recompiled and redeployed.\n\n NOTE:\u00a0This CVE affects only End Of Life (EOL)\u00a0software components. The vendor, Microsoft, has indicated there will be no future updates nor support provided upon inquiry."
    }
  ],
  "id": "CVE-2025-36855",
  "lastModified": "2025-09-08T16:25:38.810",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "36c7be3b-2937-45df-85ea-ca7133ea542c",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-09-08T14:15:34.577",
  "references": [
    {
      "source": "36c7be3b-2937-45df-85ea-ca7133ea542c",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21176"
    },
    {
      "source": "36c7be3b-2937-45df-85ea-ca7133ea542c",
      "url": "https://www.herodevs.com/vulnerability-directory/cve-2025-21176"
    }
  ],
  "sourceIdentifier": "36c7be3b-2937-45df-85ea-ca7133ea542c",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-126"
        }
      ],
      "source": "36c7be3b-2937-45df-85ea-ca7133ea542c",
      "type": "Secondary"
    }
  ]
}


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