CVE-2026-50528 (GCVE-0-2026-50528)

Vulnerability from cvelistv5 – Published: 2026-07-14 19:29 – Updated: 2026-09-17 22:32
VLAI
Title
.NET Security Feature Bypass Vulnerability
Summary
Incorrect authorization in .NET allows an unauthorized attacker to bypass a security feature over a network.
Severity
8.2 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N/E:U/RL:O/RC:C
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-15 14:23 UTC
CWE
  • CWE-863 - Incorrect Authorization
  • CWE-302 - Authentication Bypass by Assumed-Immutable Data
  • CWE-636 - Not Failing Securely ('Failing Open')
Assigner
References
Impacted products
Vendor Product Version CPE status
Microsoft .NET 10.0 Affected: 10.0.0 , < 10.0.10 (custom)
guessed Create a notification for this product.
Microsoft .NET 8.0 Affected: 8.0.0 , < 8.0.29 (custom)
guessed Create a notification for this product.
Microsoft .NET 9.0 Affected: 9.0.0 , < 9.0.18 (custom)
guessed Create a notification for this product.
Microsoft Microsoft Visual Studio 2022 version 17.12 Affected: 17.12.0 , < 17.12.22 (custom)
guessed Create a notification for this product.
Microsoft Microsoft Visual Studio 2022 version 17.14 Affected: 17.14.0 , < 17.14.36 (custom)
guessed Create a notification for this product.
Microsoft Microsoft Visual Studio 2026 version 18.7 Affected: 18.0 , < 18.7.4 (custom)
guessed Create a notification for this product.
Date Public
2026-07-14 14:00
Show details on NVD website
To clipboard 

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                },
                {
                  "cweId": "CWE-302",
                  "description": "CWE-302: Authentication Bypass by Assumed-Immutable Data",
                  "lang": "en-US",
                  "type": "CWE"
                },
                {
                  "cweId": "CWE-636",
                  "description": "CWE-636: Not Failing Securely (\u0027Failing Open\u0027)",
                  "lang": "en-US",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-09-17T22:32:02.481Z",
            "orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
            "shortName": "microsoft"
          },
          "references": [
            {
              "name": ".NET Security Feature Bypass Vulnerability",
              "tags": [
                "vendor-advisory",
                "patch"
              ],
              "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50528"
            }
          ],
          "title": ".NET Security Feature Bypass Vulnerability"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
        "assignerShortName": "microsoft",
        "cveId": "CVE-2026-50528",
        "datePublished": "2026-07-14T19:29:56.224Z",
        "dateReserved": "2026-06-04T19:00:41.293Z",
        "dateUpdated": "2026-09-17T22:32:02.481Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


Detection rules are retrieved from Rulezet.


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.