Vulnerability-Lookup

VAR-202504-3989

Vulnerability from variot - Updated: 2025-07-18 23:22

Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network. Microsoft's ASP.NET Core and Microsoft Visual Studio includes denial of service (DoS) Vulnerability exists.Denial of service by unauthenticated attackers (DoS) It may be in a state

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CVE-2025-26682 (GCVE-0-2025-26682)

Vulnerability from cvelistv5 – Published: 2025-04-08 17:24 – Updated: 2026-08-10 15:13

Title

ASP.NET Core and Visual Studio Denial of Service Vulnerability

Summary

Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-08 17:33 UTC

CWE

CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

microsoft CNA under the mitre root

CNA scorecard B 82/100 over 3948 records in the last 180 days details

References

1 reference

URL	Tags
https://msrc.microsoft.com/update-guide/vulnerabi…	vendor-advisorypatch

Impacted products

6 products

Vendor	Product	Version
Microsoft	ASP.NET Core 8.0	Affected: 8.0 , < 8.0.15 (custom)
Microsoft	ASP.NET Core 9.0	Affected: 9.0 , < 9.0.4 (custom)
Microsoft	Microsoft Visual Studio 2022 version 17.10	Affected: 17.10.0 , < 17.10.13 (custom)
Microsoft	Microsoft Visual Studio 2022 version 17.12	Affected: 17.12.0 , < 17.12.7 (custom)
Microsoft	Microsoft Visual Studio 2022 version 17.13	Affected: 17.13.0 , < 17.13.6 (custom)
Microsoft	Microsoft Visual Studio 2022 version 17.8	Affected: 17.8.0 , < 17.8.20 (custom)

Date Public

2025-04-08 07:00

Show details on NVD website

JSON

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            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en-US",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-770",
              "description": "CWE-770: Allocation of Resources Without Limits or Throttling",
              "lang": "en-US",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-10T15:13:20.349Z",
        "orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
        "shortName": "microsoft"
      },
      "references": [
        {
          "name": "ASP.NET Core and Visual Studio Denial of Service Vulnerability",
          "tags": [
            "vendor-advisory",
            "patch"
          ],
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-26682"
        }
      ],
      "title": "ASP.NET Core and Visual Studio Denial of Service Vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
    "assignerShortName": "microsoft",
    "cveId": "CVE-2025-26682",
    "datePublished": "2025-04-08T17:24:22.748Z",
    "dateReserved": "2025-02-12T22:35:41.551Z",
    "dateUpdated": "2026-08-10T15:13:20.349Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

Publication & reservation Sightings KEV catalogs Other timestamps

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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