{
  "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 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" : "Der Kernel stellt den Kern des Linux Betriebssystems dar.",
      "title" : "Produktbeschreibung"
    }, {
      "category" : "summary",
      "text" : "Ein lokaler Angreifer kann eine Schwachstellen im Linux Kernel ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen, einschließlich der Ausführung von beliebigem Code, der Manipulation von Speicherinhalten oder der Verursachung eines Denial-of-Service-Zustands.",
      "title" : "Angriff"
    }, {
      "category" : "general",
      "text" : "- Linux",
      "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-2026-1265 - CSAF Version",
      "url" : "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1265.json"
    }, {
      "category" : "self",
      "summary" : "WID-SEC-2026-1265 - Portal Version",
      "url" : "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1265"
    }, {
      "category" : "external",
      "summary" : "Kernel CVE Announce Mailingliste",
      "url" : "https://lore.kernel.org/linux-cve-announce/"
    }, {
      "category" : "external",
      "summary" : "Linux Kernel CVE Announcement CVE-2026-31533",
      "url" : "https://lore.kernel.org/linux-cve-announce/2026042309-CVE-2026-31533-9308@gregkh/"
    }, {
      "category" : "external",
      "summary" : "Debian Security Advisory DLA-4561 vom 2026-05-02",
      "url" : "https://lists.debian.org/debian-lts-announce/2026/05/msg00005.html"
    }, {
      "category" : "external",
      "summary" : "Debian Security Advisory DSA-6238 vom 2026-05-04",
      "url" : "https://lists.debian.org/debian-security-announce/2026/msg00148.html"
    }, {
      "category" : "external",
      "summary" : "Debian Security Advisory DSA-6243 vom 2026-05-04",
      "url" : "https://lists.debian.org/debian-security-announce/2026/msg00154.html"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-8278-1 vom 2026-05-20",
      "url" : "https://ubuntu.com/security/notices/USN-8278-1"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-8277-1 vom 2026-05-20",
      "url" : "https://ubuntu.com/security/notices/USN-8277-1"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-8279-1 vom 2026-05-20",
      "url" : "https://ubuntu.com/security/notices/USN-8279-1"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-8289-1 vom 2026-05-21",
      "url" : "https://ubuntu.com/security/notices/USN-8289-1"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-8280-1 vom 2026-05-26",
      "url" : "https://ubuntu.com/security/notices/USN-8280-1"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-8278-2 vom 2026-05-26",
      "url" : "https://ubuntu.com/security/notices/USN-8278-2"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-8280-3 vom 2026-05-26",
      "url" : "https://ubuntu.com/security/notices/USN-8280-3"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-8310-1 vom 2026-05-26",
      "url" : "https://ubuntu.com/security/notices/USN-8310-1"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-8305-2 vom 2026-05-26",
      "url" : "https://ubuntu.com/security/notices/USN-8305-2"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-8280-2 vom 2026-05-26",
      "url" : "https://ubuntu.com/security/notices/USN-8280-2"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-8305-1 vom 2026-05-26",
      "url" : "https://ubuntu.com/security/notices/USN-8305-1"
    } ],
    "source_lang" : "en-US",
    "title" : "Linux Kernel: Schwachstelle ermöglicht nicht spezifizierten Angriff",
    "tracking" : {
      "current_release_date" : "2026-05-26T22:00:00.000+00:00",
      "generator" : {
        "date" : "2026-05-27T08:52:51.563+00:00",
        "engine" : {
          "name" : "BSI-WID",
          "version" : "1.6.0"
        }
      },
      "id" : "WID-SEC-W-2026-1265",
      "initial_release_date" : "2026-04-23T22:00:00.000+00:00",
      "revision_history" : [ {
        "date" : "2026-04-23T22:00:00.000+00:00",
        "number" : "1",
        "summary" : "Initiale Fassung"
      }, {
        "date" : "2026-05-03T22:00:00.000+00:00",
        "number" : "2",
        "summary" : "Neue Updates von Debian aufgenommen"
      }, {
        "date" : "2026-05-19T22:00:00.000+00:00",
        "number" : "3",
        "summary" : "Neue Updates von Ubuntu aufgenommen"
      }, {
        "date" : "2026-05-20T22:00:00.000+00:00",
        "number" : "4",
        "summary" : "Neue Updates von Ubuntu aufgenommen"
      }, {
        "date" : "2026-05-26T22:00:00.000+00:00",
        "number" : "5",
        "summary" : "Neue Updates von Ubuntu aufgenommen"
      } ],
      "status" : "final",
      "version" : "5"
    }
  },
  "product_tree" : {
    "branches" : [ {
      "branches" : [ {
        "category" : "product_name",
        "name" : "Debian Linux",
        "product" : {
          "name" : "Debian Linux",
          "product_id" : "2951",
          "product_identification_helper" : {
            "cpe" : "cpe:/o:debian:debian_linux:-"
          }
        }
      } ],
      "category" : "vendor",
      "name" : "Debian"
    }, {
      "branches" : [ {
        "branches" : [ {
          "category" : "product_version_range",
          "name" : "<5.15.203",
          "product" : {
            "name" : "Open Source Linux Kernel <5.15.203",
            "product_id" : "T053309"
          }
        }, {
          "category" : "product_version",
          "name" : "5.15.203",
          "product" : {
            "name" : "Open Source Linux Kernel 5.15.203",
            "product_id" : "T053309-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/o:linux:linux_kernel:5.15.203"
            }
          }
        }, {
          "category" : "product_version_range",
          "name" : "<6.1.169",
          "product" : {
            "name" : "Open Source Linux Kernel <6.1.169",
            "product_id" : "T053310"
          }
        }, {
          "category" : "product_version",
          "name" : "6.1.169",
          "product" : {
            "name" : "Open Source Linux Kernel 6.1.169",
            "product_id" : "T053310-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/o:linux:linux_kernel:6.1.169"
            }
          }
        }, {
          "category" : "product_version_range",
          "name" : "<6.6.135",
          "product" : {
            "name" : "Open Source Linux Kernel <6.6.135",
            "product_id" : "T053311"
          }
        }, {
          "category" : "product_version",
          "name" : "6.6.135",
          "product" : {
            "name" : "Open Source Linux Kernel 6.6.135",
            "product_id" : "T053311-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/o:linux:linux_kernel:6.6.135"
            }
          }
        }, {
          "category" : "product_version_range",
          "name" : "<6.12.82",
          "product" : {
            "name" : "Open Source Linux Kernel <6.12.82",
            "product_id" : "T053312"
          }
        }, {
          "category" : "product_version",
          "name" : "6.12.82",
          "product" : {
            "name" : "Open Source Linux Kernel 6.12.82",
            "product_id" : "T053312-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/o:linux:linux_kernel:6.12.82"
            }
          }
        }, {
          "category" : "product_version_range",
          "name" : "<6.18.23",
          "product" : {
            "name" : "Open Source Linux Kernel <6.18.23",
            "product_id" : "T053313"
          }
        }, {
          "category" : "product_version",
          "name" : "6.18.23",
          "product" : {
            "name" : "Open Source Linux Kernel 6.18.23",
            "product_id" : "T053313-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/o:linux:linux_kernel:6.18.23"
            }
          }
        }, {
          "category" : "product_version_range",
          "name" : "<6.19.13",
          "product" : {
            "name" : "Open Source Linux Kernel <6.19.13",
            "product_id" : "T053314"
          }
        }, {
          "category" : "product_version",
          "name" : "6.19.13",
          "product" : {
            "name" : "Open Source Linux Kernel 6.19.13",
            "product_id" : "T053314-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/o:linux:linux_kernel:6.19.13"
            }
          }
        }, {
          "category" : "product_version_range",
          "name" : "<7.0",
          "product" : {
            "name" : "Open Source Linux Kernel <7.0",
            "product_id" : "T053315"
          }
        }, {
          "category" : "product_version",
          "name" : "7",
          "product" : {
            "name" : "Open Source Linux Kernel 7.0",
            "product_id" : "T053315-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/o:linux:linux_kernel:7.0"
            }
          }
        } ],
        "category" : "product_name",
        "name" : "Linux Kernel"
      } ],
      "category" : "vendor",
      "name" : "Open Source"
    }, {
      "branches" : [ {
        "category" : "product_name",
        "name" : "Ubuntu Linux",
        "product" : {
          "name" : "Ubuntu Linux",
          "product_id" : "T000126",
          "product_identification_helper" : {
            "cpe" : "cpe:/o:canonical:ubuntu_linux:-"
          }
        }
      } ],
      "category" : "vendor",
      "name" : "Ubuntu"
    } ]
  },
  "vulnerabilities" : [ {
    "cve" : "CVE-2026-31533",
    "product_status" : {
      "known_affected" : [ "2951", "T053309", "T000126", "T053314", "T053315", "T053312", "T053313", "T053310", "T053311" ]
    },
    "release_date" : "2026-04-23T22:00:00.000+00:00",
    "title" : "CVE-2026-31533"
  } ]
}