cnvd - cnvd-2021-51485

cnvd-2021-51485

Vulnerability from cnvd

Title: Microsoft Exchange Server远程代码执行漏洞（CNVD-2021-51485）

Description:

Microsoft Exchange Server是Microsoft开发的邮件服务器和日历服务器。

Microsoft Exchange Server存在远程代码执行漏洞。攻击者可利用该漏洞实现远程代码执行。

Severity: 高

Patch Name: Microsoft Exchange Server远程代码执行漏洞（CNVD-2021-51485）的补丁

Patch Description:

Microsoft Exchange Server是Microsoft开发的邮件服务器和日历服务器。

Microsoft Exchange Server存在远程代码执行漏洞。攻击者可利用该漏洞实现远程代码执行。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/en-US/vulnerability/CVE-2021-34473

Reference: https://nvd.nist.gov/vuln/detail/CVE-2021-34473

Impacted products

Name
['Microsoft Exchange Server 2019 Cumulative Update 8', 'Microsoft Exchange Server 2016 Cumulative Update 19', 'Microsoft Exchange Server 2019 Cumulative Update 9', 'Microsoft Exchange Server 2016 Cumulative Update 20', 'Microsoft Exchange Server 2013 Cumulative Update 23']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-34473",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-34473"
    }
  },
  "description": "Microsoft Exchange Server\u662fMicrosoft\u5f00\u53d1\u7684\u90ae\u4ef6\u670d\u52a1\u5668\u548c\u65e5\u5386\u670d\u52a1\u5668\u3002\n\nMicrosoft Exchange Server\u5b58\u5728\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5b9e\u73b0\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\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://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-34473",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-51485",
  "openTime": "2021-07-17",
  "patchDescription": "Microsoft Exchange Server\u662fMicrosoft\u5f00\u53d1\u7684\u90ae\u4ef6\u670d\u52a1\u5668\u548c\u65e5\u5386\u670d\u52a1\u5668\u3002\r\n\r\nMicrosoft Exchange Server\u5b58\u5728\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5b9e\u73b0\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\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 Exchange Server\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e\uff08CNVD-2021-51485\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Microsoft Exchange Server 2019 Cumulative Update 8",
      "Microsoft Exchange Server 2016 Cumulative Update 19",
      "Microsoft Exchange Server 2019 Cumulative Update 9",
      "Microsoft Exchange Server 2016 Cumulative Update 20",
      "Microsoft Exchange Server 2013 Cumulative Update 23"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-34473",
  "serverity": "\u9ad8",
  "submitTime": "2021-07-15",
  "title": "Microsoft Exchange Server\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e\uff08CNVD-2021-51485\uff09"
}

CVE-2021-34473 (GCVE-0-2021-34473)

Vulnerability from cvelistv5

Published

2021-07-14 17:54

Modified

2025-07-30 01:38

Severity ?

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

CWE

Remote Code Execution

Summary

Microsoft Exchange Server Remote Code Execution Vulnerability

References

▼	URL	Tags
	https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34473	x_refsource_MISC
	https://www.zerodayinitiative.com/advisories/ZDI-21-821/	x_refsource_MISC
	http://packetstormsecurity.com/files/163895/Microsoft-Exchange-ProxyShell-Remote-Code-Execution.html	x_refsource_MISC

Impacted products

Vendor

Product

Version

▼

Microsoft

Microsoft Exchange Server 2013 Cumulative Update 23

Version: 15.00.0 < 15.00.1497.015
cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:*

Microsoft	Microsoft Exchange Server 2019 Cumulative Update 9	Version: 15.02.0 < 15.02.0858.010 cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_9::::::
Microsoft	Microsoft Exchange Server 2016 Cumulative Update 20	Version: 15.01.0 < 15.01.2242.008 cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_20::::::
Microsoft	Microsoft Exchange Server 2016 Cumulative Update 19	Version: 15.01.0 < 15.01.2176.012 cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_19::::::
Microsoft	Microsoft Exchange Server 2019 Cumulative Update 8	Version: 15.02.0 < 15.02.0792.013 cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_8::::::

Show details on NVD website

JSON

To clipboard

{
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          "dateUpdated": "2024-08-04T00:12:50.367Z",
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            ],
            "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34473"
          },
          {
            "tags": [
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            "url": "https://www.zerodayinitiative.com/advisories/ZDI-21-821/"
          },
          {
            "tags": [
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              "x_transferred"
            ],
            "url": "http://packetstormsecurity.com/files/163895/Microsoft-Exchange-ProxyShell-Remote-Code-Execution.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
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                "id": "CVE-2021-34473",
                "options": [
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                  {
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                  },
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                  }
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                "role": "CISA Coordinator",
                "timestamp": "2025-02-04T15:42:23.926450Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
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          },
          {
            "other": {
              "content": {
                "dateAdded": "2021-11-03",
                "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-34473"
              },
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        "problemTypes": [
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            "time": "2021-11-03T00:00:00+00:00",
            "value": "CVE-2021-34473 added to CISA KEV"
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    "cna": {
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      "providerMetadata": {
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}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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