Vulnerability-Lookup

CNVD-2021-48891

Vulnerability from cnvd - Published: 2021-07-09

Title

Microsoft SharePoint远程代码执行漏洞（CNVD-2021-48891）

Description

Microsoft SharePoint是美国微软（Microsoft）公司的一套企业业务协作平台。该平台用于对业务信息进行整合，并能够共享工作、与他人协同工作、组织项目和工作组、搜索人员和信息。 Microsoft SharePoint存在远程代码执行漏洞，攻击者可利用该漏洞在目标服务器上执行代码。

Severity

中

Patch Name

Microsoft SharePoint远程代码执行漏洞（CNVD-2021-48891）的补丁

Patch Description

Microsoft SharePoint是美国微软（Microsoft）公司的一套企业业务协作平台。该平台用于对业务信息进行整合，并能够共享工作、与他人协同工作、组织项目和工作组、搜索人员和信息。 Microsoft SharePoint存在远程代码执行漏洞，攻击者可利用该漏洞在目标服务器上执行代码。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-2021-27076

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-27076

Impacted products

Name
['Microsoft Business Productivity Servers 2010 SP2', 'Microsoft SharePoint Enterprise Server 2016', 'Microsoft SharePoint Foundation 2013 SP1', 'Microsoft SharePoint Server 2019']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-27076",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-27076"
    }
  },
  "description": "Microsoft SharePoint\u662f\u7f8e\u56fd\u5fae\u8f6f\uff08Microsoft\uff09\u516c\u53f8\u7684\u4e00\u5957\u4f01\u4e1a\u4e1a\u52a1\u534f\u4f5c\u5e73\u53f0\u3002\u8be5\u5e73\u53f0\u7528\u4e8e\u5bf9\u4e1a\u52a1\u4fe1\u606f\u8fdb\u884c\u6574\u5408\uff0c\u5e76\u80fd\u591f\u5171\u4eab\u5de5\u4f5c\u3001\u4e0e\u4ed6\u4eba\u534f\u540c\u5de5\u4f5c\u3001\u7ec4\u7ec7\u9879\u76ee\u548c\u5de5\u4f5c\u7ec4\u3001\u641c\u7d22\u4eba\u5458\u548c\u4fe1\u606f\u3002\n\nMicrosoft SharePoint\u5b58\u5728\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5728\u76ee\u6807\u670d\u52a1\u5668\u4e0a\u6267\u884c\u4ee3\u7801\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f,\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-27076",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-48891",
  "openTime": "2021-07-09",
  "patchDescription": "Microsoft SharePoint\u662f\u7f8e\u56fd\u5fae\u8f6f\uff08Microsoft\uff09\u516c\u53f8\u7684\u4e00\u5957\u4f01\u4e1a\u4e1a\u52a1\u534f\u4f5c\u5e73\u53f0\u3002\u8be5\u5e73\u53f0\u7528\u4e8e\u5bf9\u4e1a\u52a1\u4fe1\u606f\u8fdb\u884c\u6574\u5408\uff0c\u5e76\u80fd\u591f\u5171\u4eab\u5de5\u4f5c\u3001\u4e0e\u4ed6\u4eba\u534f\u540c\u5de5\u4f5c\u3001\u7ec4\u7ec7\u9879\u76ee\u548c\u5de5\u4f5c\u7ec4\u3001\u641c\u7d22\u4eba\u5458\u548c\u4fe1\u606f\u3002\r\n\r\nMicrosoft SharePoint\u5b58\u5728\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5728\u76ee\u6807\u670d\u52a1\u5668\u4e0a\u6267\u884c\u4ee3\u7801\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 SharePoint\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e\uff08CNVD-2021-48891\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Microsoft Business Productivity Servers 2010 SP2",
      "Microsoft SharePoint Enterprise Server 2016",
      "Microsoft SharePoint Foundation 2013 SP1",
      "Microsoft SharePoint Server 2019"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-27076",
  "serverity": "\u4e2d",
  "submitTime": "2021-03-10",
  "title": "Microsoft SharePoint\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e\uff08CNVD-2021-48891\uff09"
}

CVE-2021-27076 (GCVE-0-2021-27076)

Vulnerability from cvelistv5 – Published: 2021-03-11 15:50 – Updated: 2026-08-19 16:30

Title

Microsoft SharePoint Server Remote Code Execution Vulnerability

Summary

Microsoft SharePoint Server Remote Code Execution Vulnerability

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 · CISA-ADP (v2.0.3)

Decision recorded 2024-01-09 16:23 UTC

CWE

Remote Code Execution

Assigner

microsoft mitre root

References

3 references

URL	Tags
https://msrc.microsoft.com/update-guide/vulnerabi…	vendor-advisorypatch
https://portal.msrc.microsoft.com/en-US/security-…	x_refsource_MISCx_transferred
https://www.zerodayinitiative.com/advisories/ZDI-…	x_refsource_MISCx_transferred

Impacted products

4 products

Vendor	Product	Version
Microsoft	Microsoft Business Productivity Servers 2010 Service Pack 2	Affected: 13.0.0.0 , < 14.0.7267.5000 (custom)
Microsoft	Microsoft SharePoint Enterprise Server 2016	Affected: 16.0.0 , < 16.0.5134.1000 (custom)
Microsoft	Microsoft SharePoint Foundation 2013 Service Pack 1	Affected: 15.0.0 , < 15.0.5327.1000 (custom)
Microsoft	Microsoft SharePoint Server 2019	Affected: 16.0.0 , < 16.0.10372.20000 (custom)

Date Public

2021-03-09 16:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T20:40:47.268Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-27076"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.zerodayinitiative.com/advisories/ZDI-21-276/"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-27076",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-01-09T16:23:17.145107Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-19T16:09:37.622Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Microsoft Business Productivity Servers 2010 Service Pack 2",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "14.0.7267.5000",
              "status": "affected",
              "version": "13.0.0.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "platforms": [
            "x64-based Systems"
          ],
          "product": "Microsoft SharePoint Enterprise Server 2016",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "16.0.5134.1000",
              "status": "affected",
              "version": "16.0.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "platforms": [
            "x64-based Systems"
          ],
          "product": "Microsoft SharePoint Foundation 2013 Service Pack 1",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "15.0.5327.1000",
              "status": "affected",
              "version": "15.0.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "platforms": [
            "x64-based Systems"
          ],
          "product": "Microsoft SharePoint Server 2019",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "16.0.10372.20000",
              "status": "affected",
              "version": "16.0.0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:microsoft:sharepoint_server_2016:*:*:*:*:enterprise:*:*:*",
                  "versionEndExcluding": "16.0.5134.1000",
                  "versionStartIncluding": "16.0.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:microsoft:sharepoint_server_2019:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "16.0.10372.20000",
                  "versionStartIncluding": "16.0.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:microsoft:business_productivity_servers:*:sp2:*:*:*:*:*:*",
                  "versionEndExcluding": "14.0.7267.5000",
                  "versionStartIncluding": "13.0.0.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:microsoft:sharepoint_foundation_2013:*:sp1:*:*:*:*:*:*",
                  "versionEndExcluding": "15.0.5327.1000",
                  "versionStartIncluding": "15.0.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "datePublic": "2021-03-09T16:00:00.000Z",
      "descriptions": [
        {
          "lang": "en-US",
          "value": "Microsoft SharePoint Server Remote Code Execution Vulnerability"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "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",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en-US",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Remote Code Execution",
              "lang": "en-US",
              "type": "Impact"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-19T16:30:50.882Z",
        "orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
        "shortName": "microsoft"
      },
      "references": [
        {
          "name": "Microsoft SharePoint Server Remote Code Execution Vulnerability",
          "tags": [
            "vendor-advisory",
            "patch"
          ],
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-27076"
        }
      ],
      "title": "Microsoft SharePoint Server Remote Code Execution Vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
    "assignerShortName": "microsoft",
    "cveId": "CVE-2021-27076",
    "datePublished": "2021-03-11T15:50:53.000Z",
    "dateReserved": "2021-02-10T00:00:00.000Z",
    "dateUpdated": "2026-08-19T16:30:50.882Z",
    "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.

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.