WID-SEC-W-2026-1571

Vulnerability from csaf_certbund - Published: 2026-05-17 22:00 - Updated: 2026-05-20 22:00
Summary
Linux Kernel: 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: Der Kernel stellt den Kern des Linux Betriebssystems dar.
Angriff: Ein lokaler Angreifer kann eine Schwachstelle im Linux Kernel ausnutzen, um Sicherheitsvorkehrungen zu umgehen und vertrauliche Informationen offenzulegen, was weitere Angriffe ermöglicht.
Betroffene Betriebssysteme: - Linux
Affected products
Product Identifier Version Remediation
Open Source Linux Kernel <6.18.31
Open Source / Linux Kernel
<6.18.31
Open Source Linux Kernel <7.0.8
Open Source / Linux Kernel
<7.0.8
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
SUSE Linux
SUSE
cpe:/o:suse:suse_linux:-
Open Source Linux Kernel <6.12.89
Open Source / Linux Kernel
<6.12.89
Red Hat Enterprise Linux
Red Hat
cpe:/o:redhat:enterprise_linux:-
Open Source Linux Kernel <6.6.139
Open Source / Linux Kernel
<6.6.139
Open Source Linux Kernel <6.1.173
Open Source / Linux Kernel
<6.1.173
Open Source Linux Kernel <5.15.207
Open Source / Linux Kernel
<5.15.207
Open Source Linux Kernel <5.10.256
Open Source / Linux Kernel
<5.10.256
Fedora Linux
Fedora
cpe:/o:fedoraproject:fedora:-

{
  "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": "Der Kernel stellt den Kern des Linux Betriebssystems dar.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein lokaler Angreifer kann eine Schwachstelle im Linux Kernel ausnutzen, um Sicherheitsvorkehrungen zu umgehen und vertrauliche Informationen offenzulegen, was weitere Angriffe erm\u00f6glicht.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Linux",
        "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-2026-1571 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1571.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-1571 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1571"
      },
      {
        "category": "external",
        "summary": "Linux Kernel CVE Announcement CVE-2026-46333 vom 2026-05-17",
        "url": "https://lore.kernel.org/linux-cve-announce/2026051554-CVE-2026-46333-662a@gregkh/"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-2026-03BE3DC34B vom 2026-05-15",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-2026-03be3dc34b"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-2026-2AEB7D033A vom 2026-05-15",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-2026-2aeb7d033a"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DSA-6274 vom 2026-05-18",
        "url": "https://lists.debian.org/debian-security-announce/2026/msg00185.html"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-2026-8B4A8D18D2 vom 2026-05-15",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-2026-8b4a8d18d2"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DSA-6275 vom 2026-05-18",
        "url": "https://lists.debian.org/debian-security-announce/2026/msg00186.html"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DLA-4587 vom 2026-05-16",
        "url": "https://lists.debian.org/debian-lts-announce/2026/05/msg00032.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:1978-1 vom 2026-05-18",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-May/026140.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:1959-1 vom 2026-05-18",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-May/026125.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:19540 vom 2026-05-20",
        "url": "https://access.redhat.com/errata/RHSA-2026:19540"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:19521 vom 2026-05-20",
        "url": "https://access.redhat.com/errata/RHSA-2026:19521"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DLA-4588 vom 2026-05-19",
        "url": "https://lists.debian.org/debian-lts-announce/2026/05/msg00035.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:19875 vom 2026-05-21",
        "url": "https://access.redhat.com/errata/RHSA-2026:19875"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:19568 vom 2026-05-21",
        "url": "https://access.redhat.com/errata/RHSA-2026:19568"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:19569 vom 2026-05-20",
        "url": "https://access.redhat.com/errata/RHSA-2026:19569"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:19664 vom 2026-05-20",
        "url": "https://access.redhat.com/errata/RHSA-2026:19664"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:19666 vom 2026-05-20",
        "url": "https://access.redhat.com/errata/RHSA-2026:19666"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:19705 vom 2026-05-20",
        "url": "https://access.redhat.com/errata/RHSA-2026:19705"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:19711 vom 2026-05-20",
        "url": "https://access.redhat.com/errata/RHSA-2026:19711"
      }
    ],
    "source_lang": "en-US",
    "title": "Linux Kernel: Schwachstelle erm\u00f6glicht Umgehen von Sicherheitsvorkehrungen",
    "tracking": {
      "current_release_date": "2026-05-20T22:00:00.000+00:00",
      "generator": {
        "date": "2026-05-21T07:35:37.170+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.6.0"
        }
      },
      "id": "WID-SEC-W-2026-1571",
      "initial_release_date": "2026-05-17T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-05-17T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2026-05-18T22:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2026-05-19T22:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von Red Hat und Debian aufgenommen"
        },
        {
          "date": "2026-05-20T22:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von Red Hat aufgenommen"
        }
      ],
      "status": "final",
      "version": "4"
    }
  },
  "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": [
          {
            "category": "product_name",
            "name": "Fedora Linux",
            "product": {
              "name": "Fedora Linux",
              "product_id": "74185",
              "product_identification_helper": {
                "cpe": "cpe:/o:fedoraproject:fedora:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Fedora"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c5.10.256",
                "product": {
                  "name": "Open Source Linux Kernel \u003c5.10.256",
                  "product_id": "T054269"
                }
              },
              {
                "category": "product_version",
                "name": "5.10.256",
                "product": {
                  "name": "Open Source Linux Kernel 5.10.256",
                  "product_id": "T054269-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:linux:linux_kernel:5.10.256"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c5.15.207",
                "product": {
                  "name": "Open Source Linux Kernel \u003c5.15.207",
                  "product_id": "T054270"
                }
              },
              {
                "category": "product_version",
                "name": "5.15.207",
                "product": {
                  "name": "Open Source Linux Kernel 5.15.207",
                  "product_id": "T054270-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:linux:linux_kernel:5.15.207"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c6.1.173",
                "product": {
                  "name": "Open Source Linux Kernel \u003c6.1.173",
                  "product_id": "T054271"
                }
              },
              {
                "category": "product_version",
                "name": "6.1.173",
                "product": {
                  "name": "Open Source Linux Kernel 6.1.173",
                  "product_id": "T054271-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:linux:linux_kernel:6.1.173"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c6.6.139",
                "product": {
                  "name": "Open Source Linux Kernel \u003c6.6.139",
                  "product_id": "T054272"
                }
              },
              {
                "category": "product_version",
                "name": "6.6.139",
                "product": {
                  "name": "Open Source Linux Kernel 6.6.139",
                  "product_id": "T054272-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:linux:linux_kernel:6.6.139"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c6.12.89",
                "product": {
                  "name": "Open Source Linux Kernel \u003c6.12.89",
                  "product_id": "T054273"
                }
              },
              {
                "category": "product_version",
                "name": "6.12.89",
                "product": {
                  "name": "Open Source Linux Kernel 6.12.89",
                  "product_id": "T054273-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:linux:linux_kernel:6.12.89"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c7.0.8",
                "product": {
                  "name": "Open Source Linux Kernel \u003c7.0.8",
                  "product_id": "T054275"
                }
              },
              {
                "category": "product_version",
                "name": "7.0.8",
                "product": {
                  "name": "Open Source Linux Kernel 7.0.8",
                  "product_id": "T054275-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:linux:linux_kernel:7.0.8"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c6.18.31",
                "product": {
                  "name": "Open Source Linux Kernel \u003c6.18.31",
                  "product_id": "T054276"
                }
              },
              {
                "category": "product_version",
                "name": "6.18.31",
                "product": {
                  "name": "Open Source Linux Kernel 6.18.31",
                  "product_id": "T054276-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:linux:linux_kernel:6.18.31"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Linux Kernel"
          }
        ],
        "category": "vendor",
        "name": "Open Source"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Red Hat Enterprise Linux",
            "product": {
              "name": "Red Hat Enterprise Linux",
              "product_id": "67646",
              "product_identification_helper": {
                "cpe": "cpe:/o:redhat:enterprise_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "SUSE Linux",
            "product": {
              "name": "SUSE Linux",
              "product_id": "T002207",
              "product_identification_helper": {
                "cpe": "cpe:/o:suse:suse_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "SUSE"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-46333",
      "product_status": {
        "known_affected": [
          "T054276",
          "T054275",
          "2951",
          "T002207",
          "T054273",
          "67646",
          "T054272",
          "T054271",
          "T054270",
          "T054269",
          "74185"
        ]
      },
      "release_date": "2026-05-17T22:00:00.000+00:00",
      "title": "CVE-2026-46333"
    }
  ]
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.

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Detection rules are retrieved from Rulezet.

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