WID-SEC-W-2026-1639

Vulnerability from csaf_certbund - Published: 2026-05-21 22:00 - Updated: 2026-05-21 22:00
Summary
Ubiquiti UniFi OS Server: Mehrere Schwachstellen
Severity
Hoch
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: UniFi ist Ubiquiti's End-to-End-Netzwerk-Ökosystem für Unternehmen und Smart Homes.
Angriff: Ein Angreifer kann mehrere Schwachstellen in Ubiquiti UniFi OS Server ausnutzen, um beliebigen Programmcode auszuführen, Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren oder vertrauliche Informationen offenzulegen.
Betroffene Betriebssysteme: - Linux - MacOS X - Sonstiges - UNIX - Windows
CVE-2026-33000
Affected products
Product Identifier Version Remediation
Ubiquiti UniFi OS Server <5.0.8
Ubiquiti / UniFi
 OS Server <5.0.8
CVE-2026-34908
Affected products
Product Identifier Version Remediation
Ubiquiti UniFi OS Server <5.0.8
Ubiquiti / UniFi
 OS Server <5.0.8
CVE-2026-34909
Affected products
Product Identifier Version Remediation
Ubiquiti UniFi OS Server <5.0.8
Ubiquiti / UniFi
 OS Server <5.0.8
CVE-2026-34910
Affected products
Product Identifier Version Remediation
Ubiquiti UniFi OS Server <5.0.8
Ubiquiti / UniFi
 OS Server <5.0.8
CVE-2026-34911
Affected products
Product Identifier Version Remediation
Ubiquiti UniFi OS Server <5.0.8
Ubiquiti / UniFi
 OS Server <5.0.8
References
To clipboard 

{
  "document": {
    "aggregate_severity": {
      "text": "hoch"
    },
    "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": "UniFi ist Ubiquiti\u0027s End-to-End-Netzwerk-\u00d6kosystem f\u00fcr Unternehmen und Smart Homes.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein Angreifer kann mehrere Schwachstellen in Ubiquiti UniFi OS Server ausnutzen, um beliebigen Programmcode auszuf\u00fchren, Sicherheitsma\u00dfnahmen zu umgehen, Daten zu manipulieren oder vertrauliche Informationen offenzulegen.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Linux\n- MacOS X\n- Sonstiges\n- UNIX\n- Windows",
        "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-2026-1639 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1639.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-1639 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1639"
      },
      {
        "category": "external",
        "summary": "Unifi Security Advisory Bulletin vom 2026-05-21",
        "url": "https://community.ui.com/releases/Security-Advisory-Bulletin-064-064/84811c09-4cf4-42ab-bd61-cc994445963b"
      }
    ],
    "source_lang": "en-US",
    "title": "Ubiquiti UniFi OS Server: Mehrere Schwachstellen",
    "tracking": {
      "current_release_date": "2026-05-21T22:00:00.000+00:00",
      "generator": {
        "date": "2026-05-22T08:55:33.995+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.6.0"
        }
      },
      "id": "WID-SEC-W-2026-1639",
      "initial_release_date": "2026-05-21T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-05-21T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "OS Server \u003c5.0.8",
                "product": {
                  "name": "Ubiquiti UniFi OS Server \u003c5.0.8",
                  "product_id": "T054483"
                }
              },
              {
                "category": "product_version",
                "name": "OS Server 5.0.8",
                "product": {
                  "name": "Ubiquiti UniFi OS Server 5.0.8",
                  "product_id": "T054483-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:ubnt:unifi:os_server__5.0.8"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "UniFi"
          }
        ],
        "category": "vendor",
        "name": "Ubiquiti"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-33000",
      "product_status": {
        "known_affected": [
          "T054483"
        ]
      },
      "release_date": "2026-05-21T22:00:00.000+00:00",
      "title": "CVE-2026-33000"
    },
    {
      "cve": "CVE-2026-34908",
      "product_status": {
        "known_affected": [
          "T054483"
        ]
      },
      "release_date": "2026-05-21T22:00:00.000+00:00",
      "title": "CVE-2026-34908"
    },
    {
      "cve": "CVE-2026-34909",
      "product_status": {
        "known_affected": [
          "T054483"
        ]
      },
      "release_date": "2026-05-21T22:00:00.000+00:00",
      "title": "CVE-2026-34909"
    },
    {
      "cve": "CVE-2026-34910",
      "product_status": {
        "known_affected": [
          "T054483"
        ]
      },
      "release_date": "2026-05-21T22:00:00.000+00:00",
      "title": "CVE-2026-34910"
    },
    {
      "cve": "CVE-2026-34911",
      "product_status": {
        "known_affected": [
          "T054483"
        ]
      },
      "release_date": "2026-05-21T22:00:00.000+00:00",
      "title": "CVE-2026-34911"
    }
  ]
}


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