Vulnerability-Lookup

GHSA-G7H5-X73H-Q9PX

Vulnerability from github – Published: 2026-02-05 12:30 – Updated: 2026-02-05 12:30

Details

Improper access control in the TeamViewer Full and Host clients (Windows, macOS, Linux) prior version 15.74.5 allows an authenticated user to bypass additional access controls with “Allow after confirmation” configuration in a remote session. An exploit could result in unauthorized access prior to local confirmation. The user needs to be authenticated for the remote session via ID/password, Session Link, or Easy Access as a prerequisite to exploit this vulnerability.

Severity ?

7.2 (High)


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

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-23572"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-863"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-02-05T12:16:01Z",
    "severity": "HIGH"
  },
  "details": "Improper access control in\u202fthe\u202fTeamViewer\u202fFull and Host clients\u202f(Windows,\u202fmacOS, Linux)\u202fprior\u202fversion\u202f15.74.5 allows an authenticated user\u202fto bypass\u202fadditional\u202faccess controls with\u202f\u201cAllow after\u202fconfirmation\u201d\u202fconfiguration\u202fin\u202fa\u202fremote session.\u202fAn exploit could result in unauthorized access prior to local confirmation.\u202fThe user needs to be authenticated for the remote session via ID/password, Session Link, or Easy Access as a prerequisite to exploit this vulnerability.",
  "id": "GHSA-g7h5-x73h-q9px",
  "modified": "2026-02-05T12:30:26Z",
  "published": "2026-02-05T12:30:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23572"
    },
    {
      "type": "WEB",
      "url": "https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2026-1003"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-23572 (GCVE-0-2026-23572)

Vulnerability from cvelistv5 – Published: 2026-02-05 11:51 – Updated: 2026-02-05 14:11

Title

Improper Access Control in TeamViewer clients

Summary

Severity ?

7.2 (High)


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

CWE

CWE-863 - Incorrect Authorization

Assigner

References

URL

Tags

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

Impacted products

Vendor

Product

Version

TeamViewer

Remote

Affected: 0 , < 15.74.5 (custom)

	TeamViewer	Tensor	Affected: 0 , < 15.74.5 (custom)
	TeamViewer	One	Affected: 0 , < 15.74.5 (custom)

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-23572",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-02-05T14:10:57.741868Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-05T14:11:05.910Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "modules": [
            "Full Client",
            "Host"
          ],
          "platforms": [
            "Windows",
            "MacOS",
            "Linux"
          ],
          "product": "Remote",
          "vendor": "TeamViewer",
          "versions": [
            {
              "lessThan": "15.74.5",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "modules": [
            "Full Client",
            "Host"
          ],
          "platforms": [
            "Windows",
            "MacOS",
            "Linux"
          ],
          "product": "Tensor",
          "vendor": "TeamViewer",
          "versions": [
            {
              "lessThan": "15.74.5",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "modules": [
            "Full Client",
            "Host"
          ],
          "platforms": [
            "Windows",
            "MacOS",
            "Linux"
          ],
          "product": "One",
          "vendor": "TeamViewer",
          "versions": [
            {
              "lessThan": "15.74.5",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eImproper access control in\u202fthe\u202fTeamViewer\u202fFull and Host clients\u202f(Windows,\u202fmacOS, Linux)\u202fprior\u202fversion\u202f15.74.5 allows an authenticated user\u202fto bypass\u202fadditional\u202faccess controls with\u202f\u201cAllow after\u202fconfirmation\u201d\u202fconfiguration\u202fin\u202fa\u202fremote session.\u202fAn exploit could result in unauthorized access prior to local confirmation.\u202fThe user needs to be authenticated for the remote session via ID/password, Session Link, or Easy Access as a prerequisite to exploit this vulnerability.\u202f\u003c/span\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003e\u0026nbsp;\u003c/span\u003e"
            }
          ],
          "value": "Improper access control in\u202fthe\u202fTeamViewer\u202fFull and Host clients\u202f(Windows,\u202fmacOS, Linux)\u202fprior\u202fversion\u202f15.74.5 allows an authenticated user\u202fto bypass\u202fadditional\u202faccess controls with\u202f\u201cAllow after\u202fconfirmation\u201d\u202fconfiguration\u202fin\u202fa\u202fremote session.\u202fAn exploit could result in unauthorized access prior to local confirmation.\u202fThe user needs to be authenticated for the remote session via ID/password, Session Link, or Easy Access as a prerequisite to exploit this vulnerability."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-180",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-180 Exploiting Incorrectly Configured Access Control Security Levels"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-863",
              "description": "CWE-863 Incorrect Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-05T11:51:20.224Z",
        "orgId": "13430f76-86eb-43b2-a71c-82c956ef31b6",
        "shortName": "TV"
      },
      "references": [
        {
          "url": "https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2026-1003/"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eUpdate to the latest client version (15.74.5 or the latest version available).\u003c/span\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003e\u0026nbsp;\u003c/span\u003e\n\n\u003cbr\u003e"
            }
          ],
          "value": "Update to the latest client version (15.74.5 or the latest version available)."
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Improper Access Control in TeamViewer clients",
      "workarounds": [
        {
          "lang": "en",
          "supportingMedia": [
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              "base64": false,
              "type": "text/html",
              "value": "\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eIf an immediate update of the client is not possible\u003c/span\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003e\u0026nbsp;and the use of \u003c/span\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eadditional\u003c/span\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003e\u0026nbsp;access controls is \u003c/span\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003erequired\u003c/span\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003e, the access control setting \u201cControl this computer \u2013 Allow after Confirmation\u201d can be set as mitigation. This prevents exploitation. The access controls can be configured in the Client Settings \u2013 \u201cAdvanced Options \u0026gt; Advanced Settings for connections to this computer\u201d or via Policies \u201cAccess Control (incoming connections)\u003c/span\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003e\u201d.\u003c/span\u003e\n\n\u003cbr\u003e"
            }
          ],
          "value": "If an immediate update of the client is not possible\u00a0and the use of additional\u00a0access controls is required, the access control setting \u201cControl this computer \u2013 Allow after Confirmation\u201d can be set as mitigation. This prevents exploitation. The access controls can be configured in the Client Settings \u2013 \u201cAdvanced Options \u003e Advanced Settings for connections to this computer\u201d or via Policies \u201cAccess Control (incoming connections)\u201d."
        }
      ],
      "x_generator": {
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      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "13430f76-86eb-43b2-a71c-82c956ef31b6",
    "assignerShortName": "TV",
    "cveId": "CVE-2026-23572",
    "datePublished": "2026-02-05T11:51:20.224Z",
    "dateReserved": "2026-01-14T13:54:40.322Z",
    "dateUpdated": "2026-02-05T14:11:05.910Z",
    "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.

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GHSA-G7H5-X73H-Q9PX

CVE-2026-23572 (GCVE-0-2026-23572)

Tags

Sightings

Nomenclature