Vulnerability-Lookup

CNVD-2026-19436

Vulnerability from cnvd - Published: 2026-05-08

Title

Microsoft PowerShell权限提升漏洞

Description

Microsoft PowerShell是美国微软（Microsoft）公司的一种由微软开发的跨平台任务自动化解决方案，包含命令行 Shell、脚本语言和配置管理框架。 Microsoft PowerShell存在权限提升漏洞，该漏洞是由于PowerShell组件的输入验证不正确造成的。攻击者可利用该漏洞在系统上获得提升的权限。

Severity

高

Patch Name

Microsoft PowerShell权限提升漏洞的补丁

Patch Description

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-2026-26170

Reference

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26170

Impacted products

Name
['Microsoft Windows 10 1607', 'Microsoft Windows Server 2016', 'Microsoft Windows Server 2019', 'Microsoft Windows 10 1809', 'Microsoft Windows Server 2022', 'Microsoft Windows 10 21H2', 'Microsoft Windows 10 22H2', 'Microsoft Windows 11 23H2', 'Microsoft Windows Server 2025', 'Microsoft Windows 11 24h2', 'Microsoft Windows 11 25H2']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2026-26170",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2026-26170"
    }
  },
  "description": "Microsoft PowerShell\u662f\u7f8e\u56fd\u5fae\u8f6f\uff08Microsoft\uff09\u516c\u53f8\u7684\u4e00\u79cd\u7531\u5fae\u8f6f\u5f00\u53d1\u7684\u8de8\u5e73\u53f0\u4efb\u52a1\u81ea\u52a8\u5316\u89e3\u51b3\u65b9\u6848\uff0c\u5305\u542b\u547d\u4ee4\u884c Shell\u3001\u811a\u672c\u8bed\u8a00\u548c\u914d\u7f6e\u7ba1\u7406\u6846\u67b6\u3002\n\nMicrosoft PowerShell\u5b58\u5728\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u662f\u7531\u4e8ePowerShell\u7ec4\u4ef6\u7684\u8f93\u5165\u9a8c\u8bc1\u4e0d\u6b63\u786e\u9020\u6210\u7684\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5728\u7cfb\u7edf\u4e0a\u83b7\u5f97\u63d0\u5347\u7684\u6743\u9650\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/vulnerability/CVE-2026-26170",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2026-19436",
  "openTime": "2026-05-08",
  "patchDescription": "Microsoft PowerShell\u662f\u7f8e\u56fd\u5fae\u8f6f\uff08Microsoft\uff09\u516c\u53f8\u7684\u4e00\u79cd\u7531\u5fae\u8f6f\u5f00\u53d1\u7684\u8de8\u5e73\u53f0\u4efb\u52a1\u81ea\u52a8\u5316\u89e3\u51b3\u65b9\u6848\uff0c\u5305\u542b\u547d\u4ee4\u884c Shell\u3001\u811a\u672c\u8bed\u8a00\u548c\u914d\u7f6e\u7ba1\u7406\u6846\u67b6\u3002\r\n\r\nMicrosoft PowerShell\u5b58\u5728\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u662f\u7531\u4e8ePowerShell\u7ec4\u4ef6\u7684\u8f93\u5165\u9a8c\u8bc1\u4e0d\u6b63\u786e\u9020\u6210\u7684\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5728\u7cfb\u7edf\u4e0a\u83b7\u5f97\u63d0\u5347\u7684\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 PowerShell\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Microsoft Windows 10 1607",
      "Microsoft Windows Server 2016",
      "Microsoft Windows Server 2019",
      "Microsoft Windows 10 1809",
      "Microsoft Windows Server 2022",
      "Microsoft Windows 10 21H2",
      "Microsoft Windows 10 22H2",
      "Microsoft Windows 11 23H2",
      "Microsoft Windows Server 2025",
      "Microsoft Windows 11 24h2",
      "Microsoft Windows 11 25H2"
    ]
  },
  "referenceLink": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26170",
  "serverity": "\u9ad8",
  "submitTime": "2026-04-21",
  "title": "Microsoft PowerShell\u6743\u9650\u63d0\u5347\u6f0f\u6d1e"
}

CVE-2026-26170 (GCVE-0-2026-26170)

Vulnerability from cvelistv5 – Published: 2026-04-14 16:57 – Updated: 2026-05-12 17:38

Title

PowerShell Elevation of Privilege Vulnerability

Summary

Improper input validation in Microsoft PowerShell allows an authorized attacker to elevate privileges locally.

Severity

7.8 (High)


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

CWE

CWE-20 - Improper Input Validation

Assigner

microsoft

References

1 reference

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

Impacted products

17 products

Vendor	Product	Version
Microsoft	Windows 10 Version 1607	Affected: 10.0.14393.0 , < 10.0.14393.9060 (custom)
Microsoft	Windows 10 Version 1809	Affected: 10.0.17763.0 , < 10.0.17763.8644 (custom)
Microsoft	Windows 10 Version 21H2	Affected: 10.0.19044.0 , < 10.0.19044.7184 (custom)
Microsoft	Windows 10 Version 22H2	Affected: 10.0.19045.0 , < 10.0.19045.7184 (custom)
Microsoft	Windows 11 version 22H3	Affected: 10.0.22631.0 , < 10.0.22631.6936 (custom)
Microsoft	Windows 11 Version 23H2	Affected: 10.0.22631.0 , < 10.0.22631.6936 (custom)
Microsoft	Windows 11 Version 24H2	Affected: 10.0.26100.0 , < 10.0.26100.8246 (custom)
Microsoft	Windows 11 Version 25H2	Affected: 10.0.26200.0 , < 10.0.26200.8246 (custom)
Microsoft	Windows 11 version 26H1	Affected: 10.0.28000.0 , < 10.0.28000.1836 (custom)
Microsoft	Windows Server 2016	Affected: 10.0.14393.0 , < 10.0.14393.9060 (custom)
Microsoft	Windows Server 2016 (Server Core installation)	Affected: 10.0.14393.0 , < 10.0.14393.9060 (custom)
Microsoft	Windows Server 2019	Affected: 10.0.17763.0 , < 10.0.17763.8644 (custom)
Microsoft	Windows Server 2019 (Server Core installation)	Affected: 10.0.17763.0 , < 10.0.17763.8644 (custom)
Microsoft	Windows Server 2022	Affected: 10.0.20348.0 , < 10.0.20348.5020 (custom)
Microsoft	Windows Server 2022, 23H2 Edition (Server Core installation)	Affected: 10.0.25398.0 , < 10.0.25398.2274 (custom)
Microsoft	Windows Server 2025	Affected: 10.0.26100.0 , < 10.0.26100.32690 (custom)
Microsoft	Windows Server 2025 (Server Core installation)	Affected: 10.0.26100.0 , < 10.0.26100.32690 (custom)

Date Public

2026-04-14 14:00

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-26170",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-10T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-15T03:56:57.333Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
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        {
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        {
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        }
      ],
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          },
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          "scenarios": [
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            }
          ]
        }
      ],
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              "lang": "en-US",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-12T17:38:55.398Z",
        "orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
        "shortName": "microsoft"
      },
      "references": [
        {
          "name": "PowerShell Elevation of Privilege Vulnerability",
          "tags": [
            "vendor-advisory",
            "patch"
          ],
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26170"
        }
      ],
      "title": "PowerShell Elevation of Privilege Vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
    "assignerShortName": "microsoft",
    "cveId": "CVE-2026-26170",
    "datePublished": "2026-04-14T16:57:59.294Z",
    "dateReserved": "2026-02-11T18:33:57.776Z",
    "dateUpdated": "2026-05-12T17:38:55.398Z",
    "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.

Action not permitted

CNVD-2026-19436

CVE-2026-26170 (GCVE-0-2026-26170)

Tags

Sightings

Nomenclature