Vulnerability-Lookup

CNVD-2021-35510

Vulnerability from cnvd - Published: 2021-05-19

Title

Microsoft HTTP.sys远程代码执行漏洞

Description

Microsoft HTTP.sys是美国微软（Microsoft）公司的一个应用协议。HTTP应用协议。 Microsoft HTTP.sys存在远程代码执行漏洞。目前没有详细漏洞细节提供。

Severity

高

Patch Name

Microsoft HTTP.sys远程代码执行漏洞的补丁

Patch Description

Microsoft HTTP.sys是美国微软（Microsoft）公司的一个应用协议。HTTP应用协议。 Microsoft HTTP.sys存在远程代码执行漏洞。目前没有详细漏洞细节提供。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://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31166

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-31166

Impacted products

Name
['Microsoft Windows Server 2004', 'Microsoft Windows 10 2004', 'Microsoft Windows 10 20H2', 'Microsoft Windows Server 20H2']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-31166"
    }
  },
  "description": "Microsoft HTTP.sys\u662f\u7f8e\u56fd\u5fae\u8f6f\uff08Microsoft\uff09\u516c\u53f8\u7684\u4e00\u4e2a\u5e94\u7528\u534f\u8bae\u3002HTTP\u5e94\u7528\u534f\u8bae\u3002\n\nMicrosoft HTTP.sys\u5b58\u5728\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31166",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-35510",
  "openTime": "2021-05-19",
  "patchDescription": "Microsoft HTTP.sys\u662f\u7f8e\u56fd\u5fae\u8f6f\uff08Microsoft\uff09\u516c\u53f8\u7684\u4e00\u4e2a\u5e94\u7528\u534f\u8bae\u3002HTTP\u5e94\u7528\u534f\u8bae\u3002\r\n\r\nMicrosoft HTTP.sys\u5b58\u5728\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\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 HTTP.sys\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Microsoft Windows Server 2004",
      "Microsoft Windows 10 2004",
      "Microsoft Windows 10 20H2",
      "Microsoft Windows Server 20H2"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-31166",
  "serverity": "\u9ad8",
  "submitTime": "2021-05-14",
  "title": "Microsoft HTTP.sys\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e"
}

CVE-2021-31166 (GCVE-0-2021-31166)

Vulnerability from cvelistv5 – Published: 2021-05-11 19:11 – Updated: 2025-10-21 23:25

Title

HTTP Protocol Stack Remote Code Execution Vulnerability

Summary

HTTP Protocol Stack Remote Code Execution Vulnerability

Severity

9.8 (Critical)


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

SSVC

Exploitation: active Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-02-07 14:36 UTC

CWE

Remote Code Execution
CWE-416 - Use After Free

Assigner

microsoft mitre root

References

3 references

URL	Tags
https://portal.msrc.microsoft.com/en-US/security-…	x_refsource_MISC
http://packetstormsecurity.com/files/162722/Micro…	x_refsource_MISC
https://www.cisa.gov/known-exploited-vulnerabilit…	government-resource

Impacted products

4 products

Vendor	Product	Version
Microsoft	Windows 10 Version 2004	Affected: 10.0.0 , < 10.0.19041.982 (custom) cpe:2.3:o:microsoft:windows_10_1809:10.0.19041.982::::::x64:
Microsoft	Windows Server version 2004	Affected: 10.0.0 , < 10.0.19041.982 (custom) cpe:2.3:o:microsoft:windows_server_2004:10.0.19041.982:::::::*
Microsoft	Windows 10 Version 20H2	Affected: 10.0.0 , < 10.0.19042.982 (custom) cpe:2.3:o:microsoft:windows_10_20H2:10.0.19042.982::::::x86: cpe:2.3:o:microsoft:windows_10_20H2:10.0.19042.982::::::arm64:
Microsoft	Windows Server version 20H2	Affected: 10.0.0 , < 10.0.19042.982 (custom) cpe:2.3:o:microsoft:windows_server_20H2:10.0.19042.982:::::::*

Date Public

2021-05-11 07:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T22:55:52.129Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
          {
            "tags": [
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              "x_transferred"
            ],
            "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31166"
          },
          {
            "tags": [
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            ],
            "url": "http://packetstormsecurity.com/files/162722/Microsoft-HTTP-Protocol-Stack-Remote-Code-Execution.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
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              "content": {
                "id": "CVE-2021-31166",
                "options": [
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                  },
                  {
                    "Automatable": "yes"
                  },
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                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-02-07T14:36:57.411562Z",
                "version": "2.0.3"
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          {
            "other": {
              "content": {
                "dateAdded": "2022-04-06",
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              },
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        "problemTypes": [
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                "description": "CWE-416 Use After Free",
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          "dateUpdated": "2025-10-21T23:25:45.988Z",
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            "time": "2022-04-06T00:00:00.000Z",
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    ],
    "cna": {
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          "product": "Windows Server version 20H2",
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        },
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          ],
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  "dataType": "CVE_RECORD",
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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.
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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CNVD-2021-35510

CVE-2021-31166 (GCVE-0-2021-31166)

Tags

Sightings

Nomenclature

Related by attack behaviour