Vulnerability-Lookup

CNVD-2026-33438

Vulnerability from cnvd - Published: 2026-08-24

Title

Zoom Clients for Windows竞态条件漏洞

Description

Zoom Clients for Windows是美国Zoom公司的一款支持多种平台的视频会议客户端应用程序。 Zoom Clients for Windows存在竞态条件漏洞，该漏洞源于安装程序存在竞争条件，攻击者可利用该漏洞影响应用程序的完整性。

Severity

中

Patch Name

Zoom Clients for Windows竞态条件漏洞的补丁

Patch Description

Zoom Clients for Windows是美国Zoom公司的一款支持多种平台的视频会议客户端应用程序。 Zoom Clients for Windows存在竞态条件漏洞，该漏洞源于安装程序存在竞争条件，攻击者可利用该漏洞影响应用程序的完整性。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

目前厂商已发布升级程序修复该安全问题，详情见厂商官网: https://zoom.us/download

Reference

https://nvd.nist.gov/vuln/detail/CVE-2025-49456

Impacted products

Name
Zoom Zoom Clients for Windows

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2025-49456",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2025-49456"
    }
  },
  "description": "Zoom Clients for Windows\u662f\u7f8e\u56fdZoom\u516c\u53f8\u7684\u4e00\u6b3e\u652f\u6301\u591a\u79cd\u5e73\u53f0\u7684\u89c6\u9891\u4f1a\u8bae\u5ba2\u6237\u7aef\u5e94\u7528\u7a0b\u5e8f\u3002\n\nZoom Clients for Windows\u5b58\u5728\u7ade\u6001\u6761\u4ef6\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5b89\u88c5\u7a0b\u5e8f\u5b58\u5728\u7ade\u4e89\u6761\u4ef6\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5f71\u54cd\u5e94\u7528\u7a0b\u5e8f\u7684\u5b8c\u6574\u6027\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u7a0b\u5e8f\u4fee\u590d\u8be5\u5b89\u5168\u95ee\u9898\uff0c\u8be6\u60c5\u89c1\u5382\u5546\u5b98\u7f51:\r\nhttps://zoom.us/download",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2026-33438",
  "openTime": "2026-08-24",
  "patchDescription": "Zoom Clients for Windows\u662f\u7f8e\u56fdZoom\u516c\u53f8\u7684\u4e00\u6b3e\u652f\u6301\u591a\u79cd\u5e73\u53f0\u7684\u89c6\u9891\u4f1a\u8bae\u5ba2\u6237\u7aef\u5e94\u7528\u7a0b\u5e8f\u3002\r\n\r\nZoom Clients for Windows\u5b58\u5728\u7ade\u6001\u6761\u4ef6\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5b89\u88c5\u7a0b\u5e8f\u5b58\u5728\u7ade\u4e89\u6761\u4ef6\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5f71\u54cd\u5e94\u7528\u7a0b\u5e8f\u7684\u5b8c\u6574\u6027\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": "Zoom Clients for Windows\u7ade\u6001\u6761\u4ef6\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Zoom Zoom Clients for Windows"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2025-49456",
  "serverity": "\u4e2d",
  "submitTime": "2025-08-21",
  "title": "Zoom Clients for Windows\u7ade\u6001\u6761\u4ef6\u6f0f\u6d1e"
}

CVE-2025-49456 (GCVE-0-2025-49456)

Vulnerability from cvelistv5 – Published: 2025-08-12 22:52 – Updated: 2025-08-13 13:24

Title

Zoom Clients for Windows- Race Condition

Summary

Race condition in the installer for certain Zoom Clients for Windows may allow an unauthenticated user to impact application integrity via local access.

Severity

6.2 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-08-13 13:23 UTC

CWE

CWE-426 - Untrusted Search Path

Assigner

Zoom mitre root

References

1 reference

URL	Tags
https://www.zoom.com/en/trust/security-bulletin/z…

Impacted products

1 product

Vendor	Product	Version
Zoom Communications Inc	Zoom Clients for Windows	Affected: see references

Date Public

2025-08-12 12:01

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-49456",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-08-13T13:23:20.937393Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-08-13T13:24:11.169Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "Windows"
          ],
          "product": "Zoom Clients for Windows",
          "vendor": "Zoom Communications Inc",
          "versions": [
            {
              "status": "affected",
              "version": "see references"
            }
          ]
        }
      ],
      "datePublic": "2025-08-12T12:01:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cspan style=\"background-color: transparent;\"\u003e\u003cspan style=\"background-color: transparent;\"\u003eRace condition in the installer for certain Zoom Clients for Windows may allow an unauthenticated user to impact  application integrity via\u003c/span\u003e\u003c/span\u003e \u003cspan style=\"background-color: transparent;\"\u003e\u003cspan style=\"background-color: transparent;\"\u003elocal access.\u003c/span\u003e\u003c/span\u003e"
            }
          ],
          "value": "Race condition in the installer for certain Zoom Clients for Windows may allow an unauthenticated user to impact  application integrity via local access."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 6.2,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-426",
              "description": "CWE-426 Untrusted Search Path",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-08-12T22:54:46.093Z",
        "orgId": "99b9af0d-a833-4a5d-9e2f-8b1324f35351",
        "shortName": "Zoom"
      },
      "references": [
        {
          "url": "https://www.zoom.com/en/trust/security-bulletin/zsb-25029"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Zoom Clients for Windows- Race Condition",
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "99b9af0d-a833-4a5d-9e2f-8b1324f35351",
    "assignerShortName": "Zoom",
    "cveId": "CVE-2025-49456",
    "datePublished": "2025-08-12T22:52:22.718Z",
    "dateReserved": "2025-06-04T22:48:18.920Z",
    "dateUpdated": "2025-08-13T13:24:11.169Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.