Vulnerability-Lookup

CNVD-2026-28484

Vulnerability from cnvd - Published: 2026-07-21

Title

Microsoft ASP.NET Core权限提升漏洞（CNVD-2026-28484）

Description

Microsoft ASP.NET Core是美国微软（Microsoft）公司的一框跨平台开源框架。该框架用于构建Web应用、物联网应用和移动后端等基于云的应用程序。 Microsoft ASP.NET Core存在权限提升漏洞，攻击者可利用该漏洞提升权限。

Severity

高

Patch Name

Microsoft ASP.NET Core权限提升漏洞（CNVD-2026-28484）的补丁

Patch Description

Microsoft ASP.NET Core是美国微软（Microsoft）公司的一框跨平台开源框架。该框架用于构建Web应用、物联网应用和移动后端等基于云的应用程序。 Microsoft ASP.NET Core存在权限提升漏洞，攻击者可利用该漏洞提升权限。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47303

Reference

https://nvd.nist.gov/vuln/detail/CVE-2026-47303

Impacted products

Name
['Microsoft Visual Studio 2022 17.2', 'Microsoft .NET 8.0', 'Microsoft .NET 9.0', 'Microsoft .NET 10.0', 'Microsoft Visual Studio 2026 18.7']

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2026-47303",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2026-47303"
    }
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  "number": "CNVD-2026-28484",
  "openTime": "2026-07-21",
  "patchDescription": "Microsoft ASP.NET Core\u662f\u7f8e\u56fd\u5fae\u8f6f\uff08Microsoft\uff09\u516c\u53f8\u7684\u4e00\u6846\u8de8\u5e73\u53f0\u5f00\u6e90\u6846\u67b6\u3002\u8be5\u6846\u67b6\u7528\u4e8e\u6784\u5efaWeb\u5e94\u7528\u3001\u7269\u8054\u7f51\u5e94\u7528\u548c\u79fb\u52a8\u540e\u7aef\u7b49\u57fa\u4e8e\u4e91\u7684\u5e94\u7528\u7a0b\u5e8f\u3002\r\n\r\nMicrosoft ASP.NET Core\u5b58\u5728\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u63d0\u5347\u6743\u9650\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Microsoft ASP.NET Core\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff08CNVD-2026-28484\uff09\u7684\u8865\u4e01",
  "products": {
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      "Microsoft .NET 9.0",
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      "Microsoft Visual Studio 2026 18.7"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2026-47303",
  "serverity": "\u9ad8",
  "submitTime": "2026-07-17",
  "title": "Microsoft ASP.NET Core\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff08CNVD-2026-28484\uff09"
}

CVE-2026-47303 (GCVE-0-2026-47303)

Vulnerability from cvelistv5 – Published: 2026-07-14 18:45 – Updated: 2026-08-03 22:52

Title

ASP.NET Core Elevation of Privilege Vulnerability

Summary

Authentication bypass by assumed-immutable data in ASP.NET Core allows an authorized attacker to elevate privileges over a network.

Severity

8.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-302 - Authentication Bypass by Assumed-Immutable Data
CWE-863 - Incorrect Authorization
CWE-90 - Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')

Assigner

microsoft

References

1 reference

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

Impacted products

6 products

Vendor	Product	Version
Microsoft	.NET 10.0	Affected: 10.0.0 , < 10.0.10 (custom)
Microsoft	.NET 8.0	Affected: 8.0.0 , < 8.0.29 (custom)
Microsoft	.NET 9.0	Affected: 9.0.0 , < 9.0.18 (custom)
Microsoft	Microsoft Visual Studio 2022 version 17.12	Affected: 17.12.0 , < 17.12.22 (custom)
Microsoft	Microsoft Visual Studio 2022 version 17.14	Affected: 17.14.0 , < 17.14.36 (custom)
Microsoft	Microsoft Visual Studio 2026 version 18.7	Affected: 18.0 , < 18.7.4 (custom)

Date Public

2026-07-14 14:00

Show details on NVD website

JSON

To clipboard

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                "timestamp": "2026-07-13T00:00:00+00:00",
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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.

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.

Action not permitted

CNVD-2026-28484

CVE-2026-47303 (GCVE-0-2026-47303)

Tags

Sightings

Nomenclature