Vulnerability-Lookup

CNVD-2025-20856

Vulnerability from cnvd - Published: 2025-09-08

Title

DELL ThinOS 10保护机制失效漏洞

Description

DELL ThinOS 10是戴尔推出的新一代瘦客户端操作系统，专为虚拟桌面基础设施（VDI）设计，旨在提升安全性、效率和用户体验。 DELL ThinOS 10存在保护机制失效漏洞，该漏洞源于保护机制失效，攻击者可利用该漏洞导致保护机制绕过。

Severity

高

Patch Name

DELL ThinOS 10保护机制失效漏洞的补丁

Patch Description

DELL ThinOS 10是戴尔推出的新一代瘦客户端操作系统，专为虚拟桌面基础设施（VDI）设计，旨在提升安全性、效率和用户体验。 DELL ThinOS 10存在保护机制失效漏洞，该漏洞源于保护机制失效，攻击者可利用该漏洞导致保护机制绕过。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://www.dell.com/support/kbdoc/en-us/000359619/dsa-2025-331

Reference

https://nvd.nist.gov/vuln/detail/CVE-2025-43728

Impacted products

Name
DELL ThinOS 10 <2508_10.0127

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2025-43728",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2025-43728"
    }
  },
  "description": "DELL ThinOS 10\u662f\u6234\u5c14\u63a8\u51fa\u7684\u65b0\u4e00\u4ee3\u7626\u5ba2\u6237\u7aef\u64cd\u4f5c\u7cfb\u7edf\uff0c\u4e13\u4e3a\u865a\u62df\u684c\u9762\u57fa\u7840\u8bbe\u65bd\uff08VDI\uff09\u8bbe\u8ba1\uff0c\u65e8\u5728\u63d0\u5347\u5b89\u5168\u6027\u3001\u6548\u7387\u548c\u7528\u6237\u4f53\u9a8c\u3002\n\nDELL ThinOS 10\u5b58\u5728\u4fdd\u62a4\u673a\u5236\u5931\u6548\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u4fdd\u62a4\u673a\u5236\u5931\u6548\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u4fdd\u62a4\u673a\u5236\u7ed5\u8fc7\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\uff1a\r\nhttps://www.dell.com/support/kbdoc/en-us/000359619/dsa-2025-331",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2025-20856",
  "openTime": "2025-09-08",
  "patchDescription": "DELL ThinOS 10\u662f\u6234\u5c14\u63a8\u51fa\u7684\u65b0\u4e00\u4ee3\u7626\u5ba2\u6237\u7aef\u64cd\u4f5c\u7cfb\u7edf\uff0c\u4e13\u4e3a\u865a\u62df\u684c\u9762\u57fa\u7840\u8bbe\u65bd\uff08VDI\uff09\u8bbe\u8ba1\uff0c\u65e8\u5728\u63d0\u5347\u5b89\u5168\u6027\u3001\u6548\u7387\u548c\u7528\u6237\u4f53\u9a8c\u3002\r\n\r\nDELL ThinOS 10\u5b58\u5728\u4fdd\u62a4\u673a\u5236\u5931\u6548\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u4fdd\u62a4\u673a\u5236\u5931\u6548\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u4fdd\u62a4\u673a\u5236\u7ed5\u8fc7\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": "DELL ThinOS 10\u4fdd\u62a4\u673a\u5236\u5931\u6548\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "DELL ThinOS 10 \u003c2508_10.0127"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2025-43728",
  "serverity": "\u9ad8",
  "submitTime": "2025-08-29",
  "title": "DELL ThinOS 10\u4fdd\u62a4\u673a\u5236\u5931\u6548\u6f0f\u6d1e"
}

CVE-2025-43728 (GCVE-0-2025-43728)

Vulnerability from cvelistv5 – Published: 2025-08-27 13:44 – Updated: 2026-02-26 17:48

Summary

Dell ThinOS 10, versions prior to 2508_10.0127, contain a Protection Mechanism Failure vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to Protection mechanism bypass.

Severity

9.6 (Critical)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-08-28 03:55 UTC

CWE

CWE-693 - Protection Mechanism Failure

Assigner

dell mitre root

References

1 reference

URL	Tags
https://www.dell.com/support/kbdoc/en-us/00035961…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
Dell	ThinOS 10	Affected: N/A , < 2508_10.0127 (semver)

Date Public

2025-08-26 17:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-43728",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-08-28T03:55:22.762257Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-26T17:48:03.816Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "ThinOS 10",
          "vendor": "Dell",
          "versions": [
            {
              "lessThan": "2508_10.0127",
              "status": "affected",
              "version": "N/A",
              "versionType": "semver"
            }
          ]
        }
      ],
      "datePublic": "2025-08-26T17:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Dell ThinOS 10, versions prior to 2508_10.0127, contain a Protection Mechanism Failure vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to Protection mechanism bypass."
            }
          ],
          "value": "Dell ThinOS 10, versions prior to 2508_10.0127, contain a Protection Mechanism Failure vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to Protection mechanism bypass."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.6,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-693",
              "description": "CWE-693: Protection Mechanism Failure",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-08-27T13:44:25.996Z",
        "orgId": "c550e75a-17ff-4988-97f0-544cde3820fe",
        "shortName": "dell"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://www.dell.com/support/kbdoc/en-us/000359619/dsa-2025-331"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "c550e75a-17ff-4988-97f0-544cde3820fe",
    "assignerShortName": "dell",
    "cveId": "CVE-2025-43728",
    "datePublished": "2025-08-27T13:44:25.996Z",
    "dateReserved": "2025-04-17T05:03:55.667Z",
    "dateUpdated": "2026-02-26T17:48:03.816Z",
    "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.