github - ghsa-xqm7-qxfg-5xwm

GHSA-XQM7-QXFG-5XWM

Vulnerability from github – Published: 2025-12-11 12:30 – Updated: 2025-12-11 12:30

Details

A vulnerability in TeamViewer DEX Client (former 1E client) - Content Distribution Service (NomadBranch.exe) prior version 25.11 for Windows allows malicious actors to bypass file integrity validation via a crafted request. By providing a valid hash for a malicious file, an attacker can cause the service to incorrectly validate and process the file as trusted, enabling arbitrary code execution under the Nomad Branch service context.

Severity ?

8.8 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2025-44016"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-11T12:16:25Z",
    "severity": "HIGH"
  },
  "details": "A vulnerability in TeamViewer DEX Client (former 1E client) - Content Distribution Service (NomadBranch.exe) prior version 25.11 for Windows allows malicious actors to bypass file integrity validation via a crafted request. By providing a valid hash for a malicious file, an attacker can cause the service to incorrectly validate and process the file as trusted, enabling arbitrary code execution under the Nomad Branch service context.",
  "id": "GHSA-xqm7-qxfg-5xwm",
  "modified": "2025-12-11T12:30:28Z",
  "published": "2025-12-11T12:30:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-44016"
    },
    {
      "type": "WEB",
      "url": "https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2025-1005"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-44016 (GCVE-0-2025-44016)

Vulnerability from cvelistv5 – Published: 2025-12-11 11:24 – Updated: 2025-12-11 17:20

Summary

Severity ?

8.8 (High)


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

CWE

CWE-20 - Improper Input Validation

Assigner

References

URL

Tags

https://www.teamviewer.com/en/resources/trust-cen…

Impacted products

	Vendor	Product	Version
	TeamViewer	DEX	Affected: 0 , < 25.11.0.29 (custom) Affected: 0 , ≤ 25.9.0.46 (custom) Affected: 0 , ≤ 25.5.0.53 (custom) Affected: 0 , ≤ 24.5.0.69 (custom)

Credits

Threat Hunt Team of Bank of America

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-44016",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-12-11T17:20:04.181566Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-12-11T17:20:33.878Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "modules": [
            "Content Distribution Service",
            "NomadBranch.exe"
          ],
          "platforms": [
            "Windows"
          ],
          "product": "DEX",
          "vendor": "TeamViewer",
          "versions": [
            {
              "lessThan": "25.11.0.29",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            },
            {
              "changes": [
                {
                  "at": "HF-PLTPKG-524",
                  "status": "unaffected"
                }
              ],
              "lessThanOrEqual": "25.9.0.46",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            },
            {
              "changes": [
                {
                  "at": "HF-PLTPKG-526",
                  "status": "unaffected"
                }
              ],
              "lessThanOrEqual": "25.5.0.53",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            },
            {
              "changes": [
                {
                  "at": "HF-PLTPKG-525",
                  "status": "unaffected"
                }
              ],
              "lessThanOrEqual": "24.5.0.69",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Threat Hunt Team of Bank of America"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "A vulnerability in TeamViewer DEX Client (former 1E client) - Content Distribution Service (NomadBranch.exe) prior version 25.11 for Windows allows malicious actors to bypass file integrity validation via a crafted request. By providing a valid hash for a malicious file, an attacker can cause the service to incorrectly validate and process the file as trusted, enabling arbitrary code execution under the Nomad Branch service context."
            }
          ],
          "value": "A vulnerability in TeamViewer DEX Client (former 1E client) - Content Distribution Service (NomadBranch.exe) prior version 25.11 for Windows allows malicious actors to bypass file integrity validation via a crafted request. By providing a valid hash for a malicious file, an attacker can cause the service to incorrectly validate and process the file as trusted, enabling arbitrary code execution under the Nomad Branch service context."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-20",
              "description": "CWE-20 Improper Input Validation",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-11T11:24:37.520Z",
        "orgId": "13430f76-86eb-43b2-a71c-82c956ef31b6",
        "shortName": "TV"
      },
      "references": [
        {
          "url": "https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2025-1005/"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Update the TeamViewer DEX client to the latest available version."
            }
          ],
          "value": "Update the TeamViewer DEX client to the latest available version."
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "File Hash Validation Bypass in NomadBranch.exe",
      "x_generator": {
        "engine": "Vulnogram 0.5.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "13430f76-86eb-43b2-a71c-82c956ef31b6",
    "assignerShortName": "TV",
    "cveId": "CVE-2025-44016",
    "datePublished": "2025-12-11T11:24:37.520Z",
    "dateReserved": "2025-04-30T08:08:15.948Z",
    "dateUpdated": "2025-12-11T17:20:33.878Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

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

GHSA-XQM7-QXFG-5XWM

CVE-2025-44016 (GCVE-0-2025-44016)

Tags

Sightings

Nomenclature