{
  "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 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."
    }, {
      "category" : "description",
      "text" : "Microsoft Sharepoint Services ist ein Portalsystem für die zentrale Verwaltung von Dokumenten und Anwendungen. Die Inhalte werden u.a. über Webseiten zur Verfügung gestellt.\r\nMicrosoft Sharepoint ist ein Portalsystem für die zentrale Verwaltung von Dokumenten und Anwendungen. Die Inhalte werden u. a. über Webseiten zur Verfügung gestellt.",
      "title" : "Produktbeschreibung"
    }, {
      "category" : "summary",
      "text" : "Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Microsoft SharePoint Server 2016, Microsoft SharePoint Server 2019 und Microsoft SharePoint ausnutzen, um beliebigen Programmcode auszuführen.",
      "title" : "Angriff"
    }, {
      "category" : "general",
      "text" : "- Windows",
      "title" : "Betroffene Betriebssysteme"
    } ],
    "publisher" : {
      "category" : "other",
      "contact_details" : "csaf-provider@cert-bund.de",
      "name" : "Bundesamt für Sicherheit in der Informationstechnik",
      "namespace" : "https://www.bsi.bund.de"
    },
    "references" : [ {
      "category" : "self",
      "summary" : "WID-SEC-W-2026-1652 - CSAF Version",
      "url" : "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1652.json"
    }, {
      "category" : "self",
      "summary" : "WID-SEC-2026-1652 - Portal Version",
      "url" : "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1652"
    }, {
      "category" : "external",
      "summary" : "Microsoft Security Advisory CVE-2026-45659 vom 2026-05-21",
      "url" : "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45659"
    } ],
    "source_lang" : "en-US",
    "title" : "Microsoft SharePoint Server 2016 und SharePoint Server 2019: Schwachstelle ermöglicht Codeausführung",
    "tracking" : {
      "current_release_date" : "2026-05-25T22:00:00.000+00:00",
      "generator" : {
        "date" : "2026-05-26T12:17:55.131+00:00",
        "engine" : {
          "name" : "BSI-WID",
          "version" : "1.6.0"
        }
      },
      "id" : "WID-SEC-W-2026-1652",
      "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"
      }, {
        "date" : "2026-05-25T22:00:00.000+00:00",
        "number" : "2",
        "summary" : "Referenz(en) aufgenommen: EUVD-2026-31518"
      } ],
      "status" : "final",
      "version" : "2"
    }
  },
  "product_tree" : {
    "branches" : [ {
      "branches" : [ {
        "branches" : [ {
          "category" : "product_version_range",
          "name" : "Server Subscription Edition <16.0.19725.20280",
          "product" : {
            "name" : "Microsoft SharePoint Server Subscription Edition <16.0.19725.20280",
            "product_id" : "T054523"
          }
        }, {
          "category" : "product_version",
          "name" : "Server Subscription Edition 16.0.19725.20280",
          "product" : {
            "name" : "Microsoft SharePoint Server Subscription Edition 16.0.19725.20280",
            "product_id" : "T054523-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:microsoft:sharepoint:server_subscription_edition__16.0.19725.20280"
            }
          }
        } ],
        "category" : "product_name",
        "name" : "SharePoint"
      }, {
        "branches" : [ {
          "category" : "product_version_range",
          "name" : "<16.0.5552.1002",
          "product" : {
            "name" : "Microsoft SharePoint Server 2016 <16.0.5552.1002",
            "product_id" : "T054521"
          }
        }, {
          "category" : "product_version",
          "name" : "16.0.5552.1002",
          "product" : {
            "name" : "Microsoft SharePoint Server 2016 16.0.5552.1002",
            "product_id" : "T054521-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:microsoft:sharepoint_server_2016:16.0.5552.1002"
            }
          }
        } ],
        "category" : "product_name",
        "name" : "SharePoint Server 2016"
      }, {
        "branches" : [ {
          "category" : "product_version_range",
          "name" : "<16.0.10417.20128",
          "product" : {
            "name" : "Microsoft SharePoint Server 2019 <16.0.10417.20128",
            "product_id" : "T054522"
          }
        }, {
          "category" : "product_version",
          "name" : "16.0.10417.20128",
          "product" : {
            "name" : "Microsoft SharePoint Server 2019 16.0.10417.20128",
            "product_id" : "T054522-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:microsoft:sharepoint_server_2019:16.0.10417.20128"
            }
          }
        } ],
        "category" : "product_name",
        "name" : "SharePoint Server 2019"
      } ],
      "category" : "vendor",
      "name" : "Microsoft"
    } ]
  },
  "vulnerabilities" : [ {
    "cve" : "CVE-2026-45659",
    "product_status" : {
      "known_affected" : [ "T054523", "T054522", "T054521" ]
    },
    "release_date" : "2026-05-21T22:00:00.000+00:00",
    "title" : "CVE-2026-45659"
  } ]
}