Vulnerability-Lookup

WID-SEC-W-2026-2687

Vulnerability from csaf_certbund - Published: 2026-08-06 22:00 - Updated: 2026-08-06 22:00

Summary

Apple macOS (Sonoma, Sequoia und Tahoe): Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen

Severity

Mittel

Notes

Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.

Produktbeschreibung: Apple macOS ist ein Betriebssystem, das auf FreeBSD und Mach basiert.

Angriff: Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Apple macOS ausnutzen, um Sicherheitsvorkehrungen zu umgehen.

Betroffene Betriebssysteme: - MacOS X

CVE-2026-65400

Affected products

Known affected 3 products

Product	Identifier	Version	Remediation
Apple macOS Sonoma <14.8.9 Apple / macOS		Sonoma <14.8.9
Apple macOS Sequoia <15.7.9 Apple / macOS		Sequoia <15.7.9
Apple macOS Tahoe <26.6.1 Apple / macOS		Tahoe <26.6.1

References

6 references

URL	Category
https://wid.cert-bund.de/.well-known/csaf/white/2…	self
https://wid.cert-bund.de/portal/wid/securityadvis…	self
https://support.apple.com/en-us/148170	external
https://support.apple.com/en-us/148171	external
https://support.apple.com/en-us/148172	external
https://github.com/advisories/GHSA-cwph-f4w9-f4wq	external

JSON

To clipboard

{
  "document": {
    "aggregate_severity": {
      "text": "mittel"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "Apple macOS ist ein Betriebssystem, das auf FreeBSD und Mach basiert.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Apple macOS ausnutzen, um Sicherheitsvorkehrungen zu umgehen.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- MacOS X",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2026-2687 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2687.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-2687 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2687"
      },
      {
        "category": "external",
        "summary": "Apple security updates vom 2026-08-06",
        "url": "https://support.apple.com/en-us/148170"
      },
      {
        "category": "external",
        "summary": "Apple security updates vom 2026-08-06",
        "url": "https://support.apple.com/en-us/148171"
      },
      {
        "category": "external",
        "summary": "Apple security updates vom 2026-08-06",
        "url": "https://support.apple.com/en-us/148172"
      },
      {
        "category": "external",
        "summary": "GitHub Security Advisory GHSA-cwph-f4w9-f4wq vom 2026-08-06",
        "url": "https://github.com/advisories/GHSA-cwph-f4w9-f4wq"
      }
    ],
    "source_lang": "en-US",
    "title": "Apple macOS (Sonoma, Sequoia und Tahoe): Schwachstelle erm\u00f6glicht Umgehen von Sicherheitsvorkehrungen",
    "tracking": {
      "current_release_date": "2026-08-06T22:00:00.000+00:00",
      "generator": {
        "date": "2026-08-07T09:06:10.652+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.6.0"
        }
      },
      "id": "WID-SEC-W-2026-2687",
      "initial_release_date": "2026-08-06T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-08-06T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "Sonoma \u003c14.8.9",
                "product": {
                  "name": "Apple macOS Sonoma \u003c14.8.9",
                  "product_id": "T057713"
                }
              },
              {
                "category": "product_version",
                "name": "Sonoma 14.8.9",
                "product": {
                  "name": "Apple macOS Sonoma 14.8.9",
                  "product_id": "T057713-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:apple:mac_os:sonoma__14.8.9"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "Sequoia \u003c15.7.9",
                "product": {
                  "name": "Apple macOS Sequoia \u003c15.7.9",
                  "product_id": "T057715"
                }
              },
              {
                "category": "product_version",
                "name": "Sequoia 15.7.9",
                "product": {
                  "name": "Apple macOS Sequoia 15.7.9",
                  "product_id": "T057715-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:apple:mac_os:sequoia__15.7.9"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "Tahoe \u003c26.6.1",
                "product": {
                  "name": "Apple macOS Tahoe \u003c26.6.1",
                  "product_id": "T057716"
                }
              },
              {
                "category": "product_version",
                "name": "Tahoe 26.6.1",
                "product": {
                  "name": "Apple macOS Tahoe 26.6.1",
                  "product_id": "T057716-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:apple:mac_os:tahoe__26.6.1"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "macOS"
          }
        ],
        "category": "vendor",
        "name": "Apple"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-65400",
      "product_status": {
        "known_affected": [
          "T057713",
          "T057715",
          "T057716"
        ]
      },
      "release_date": "2026-08-06T22:00:00.000+00:00",
      "title": "CVE-2026-65400"
    }
  ]
}

CVE-2026-65400 (GCVE-0-2026-65400)

Vulnerability from cvelistv5 – Published: 2026-08-06 18:17 – Updated: 2026-09-14 20:48

Summary

An authentication issue was addressed with improved state management. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.7.9, macOS Sonoma 14.8.9, macOS Tahoe 26.6.1, macOS Tahoe 26.7. An attacker on the network may be able to authenticate to Screen Sharing without valid credentials.

Severity

9.8 (Critical)


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

SSVC

Exploitation: active Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-14 00:00 UTC

CWE

An attacker on the network may be able to authenticate to Screen Sharing without valid credentials
CWE-287 - Improper Authentication

Assigner

apple mitre root

References

9 references

URL	Tags
https://support.apple.com/en-us/148170
https://support.apple.com/en-us/148171
https://support.apple.com/en-us/148172
https://support.apple.com/en-us/149035
https://support.apple.com/en-us/149042
https://advisories.ncsc.nl/2026/ncsc-2026-0280.html	third-party-advisory
https://www.cisa.gov/known-exploited-vulnerabilit…	government-resource
http://seclists.org/fulldisclosure/2026/Aug/36
http://seclists.org/fulldisclosure/2026/Aug/37

Impacted products

1 product

Vendor	Product	Version
Apple	macOS	Affected: 0 , < 14.8.9 (custom) Affected: 0 , < 15.7.9 (custom) Affected: 0 , < 26.6.1 (custom) Affected: 0 , < 26.7 (custom) Affected: 0 , < 27 (custom)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 9.8,
              "baseSeverity": "CRITICAL",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-65400",
                "options": [
                  {
                    "Exploitation": "active"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-14T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          },
          {
            "other": {
              "content": {
                "dateAdded": "2026-08-18",
                "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-65400"
              },
              "type": "kev"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-287",
                "description": "CWE-287 Improper Authentication",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-19T03:55:50.505Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "third-party-advisory"
            ],
            "url": "https://advisories.ncsc.nl/2026/ncsc-2026-0280.html"
          },
          {
            "tags": [
              "government-resource"
            ],
            "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-65400"
          }
        ],
        "timeline": [
          {
            "lang": "en",
            "time": "2026-08-18T00:00:00.000Z",
            "value": "CVE-2026-65400 added to CISA KEV"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2026-08-13T23:15:32.774Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://seclists.org/fulldisclosure/2026/Aug/36"
          },
          {
            "url": "http://seclists.org/fulldisclosure/2026/Aug/37"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "macOS",
          "vendor": "Apple",
          "versions": [
            {
              "lessThan": "14.8.9",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            },
            {
              "lessThan": "15.7.9",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            },
            {
              "lessThan": "26.6.1",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            },
            {
              "lessThan": "26.7",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            },
            {
              "lessThan": "27",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An authentication issue was addressed with improved state management. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.7.9, macOS Sonoma 14.8.9, macOS Tahoe 26.6.1, macOS Tahoe 26.7. An attacker on the network may be able to authenticate to Screen Sharing without valid credentials."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "An attacker on the network may be able to authenticate to Screen Sharing without valid credentials",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-14T20:48:37.949Z",
        "orgId": "286789f9-fbc2-4510-9f9a-43facdede74c",
        "shortName": "apple"
      },
      "references": [
        {
          "url": "https://support.apple.com/en-us/148170"
        },
        {
          "url": "https://support.apple.com/en-us/148171"
        },
        {
          "url": "https://support.apple.com/en-us/148172"
        },
        {
          "url": "https://support.apple.com/en-us/149035"
        },
        {
          "url": "https://support.apple.com/en-us/149042"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "286789f9-fbc2-4510-9f9a-43facdede74c",
    "assignerShortName": "apple",
    "cveId": "CVE-2026-65400",
    "datePublished": "2026-08-06T18:17:18.263Z",
    "dateReserved": "2026-07-22T00:46:56.740Z",
    "dateUpdated": "2026-09-14T20:48:37.949Z",
    "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.

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WID-SEC-W-2026-2687

CVE-2026-65400 (GCVE-0-2026-65400)

Tags

Sightings

Nomenclature

Related by attack behaviour