WID-SEC-W-2026-1851

Vulnerability from csaf_certbund - Published: 2026-06-09 22:00 - Updated: 2026-06-14 22:00
Summary
Xen: Mehrere Schwachstellen
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: Xen ist ein Virtueller-Maschinen-Monitor (VMM), der Hardware (x86, IA-64, PowerPC) für die darauf laufenden Systeme (Domains) paravirtualisiert.
Angriff: Ein lokaler Angreifer kann mehrere Schwachstellen in Xen ausnutzen, um erweiterte Privilegien zu erlangen, Daten zu manipulieren, vertrauliche Informationen offenzulegen oder einen Denial-of-Service-Zustand zu verursachen.
Betroffene Betriebssysteme: - Sonstiges - UNIX
CVE-2026-42487
Affected products
Product Identifier Version Remediation
Open Source Xen >=4.15
Open Source / Xen
 >=4.15
SUSE Linux
SUSE
 cpe:/o:suse:suse_linux:- —
Open Source Xen >=3.3
Open Source / Xen
 >=3.3
Oracle Linux
Oracle
 cpe:/o:oracle:linux:- —
Fedora Linux
Fedora
 cpe:/o:fedoraproject:fedora:- —
CVE-2026-42489
Affected products
Product Identifier Version Remediation
Open Source Xen >=4.15
Open Source / Xen
 >=4.15
SUSE Linux
SUSE
 cpe:/o:suse:suse_linux:- —
Oracle Linux
Oracle
 cpe:/o:oracle:linux:- —
Fedora Linux
Fedora
 cpe:/o:fedoraproject:fedora:- —
CVE-2026-42490
Affected products
Product Identifier Version Remediation
Open Source Xen >=4.15
Open Source / Xen
 >=4.15
SUSE Linux
SUSE
 cpe:/o:suse:suse_linux:- —
Oracle Linux
Oracle
 cpe:/o:oracle:linux:- —
Fedora Linux
Fedora
 cpe:/o:fedoraproject:fedora:- —
CVE-2025-10263
Affected products
Product Identifier Version Remediation
Open Source Xen Arm
Open Source / Xen
 cpe:/o:xen:xen:arm Arm
SUSE Linux
SUSE
 cpe:/o:suse:suse_linux:- —
Oracle Linux
Oracle
 cpe:/o:oracle:linux:- —
Fedora Linux
Fedora
 cpe:/o:fedoraproject:fedora:- —
CVE-2026-42488
Affected products
Product Identifier Version Remediation
SUSE Linux
SUSE
 cpe:/o:suse:suse_linux:- —
Oracle Linux
Oracle
 cpe:/o:oracle:linux:- —
Fedora Linux
Fedora
 cpe:/o:fedoraproject:fedora:- —
References
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": "Xen ist ein Virtueller-Maschinen-Monitor (VMM), der Hardware (x86, IA-64, PowerPC) f\u00fcr die darauf laufenden Systeme (Domains) paravirtualisiert.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein lokaler Angreifer kann mehrere Schwachstellen in Xen ausnutzen, um erweiterte Privilegien zu erlangen, Daten zu manipulieren, vertrauliche Informationen offenzulegen oder einen Denial-of-Service-Zustand zu verursachen.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Sonstiges\n- UNIX",
        "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-2026-1851 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1851.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-1851 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1851"
      },
      {
        "category": "external",
        "summary": "Xen Security Advisory XSA-491 vom 2026-06-09",
        "url": "https://xenbits.xen.org/xsa/advisory-491.html"
      },
      {
        "category": "external",
        "summary": "Xen Security Advisory XSA-492 vom 2026-06-09",
        "url": "https://xenbits.xen.org/xsa/advisory-492.html"
      },
      {
        "category": "external",
        "summary": "Xen Security Advisory XSA-493 vom 2026-06-09",
        "url": "https://xenbits.xen.org/xsa/advisory-493.html"
      },
      {
        "category": "external",
        "summary": "Xen Security Advisory XSA-494 vom 2026-06-09",
        "url": "https://xenbits.xen.org/xsa/advisory-494.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2026-50304 vom 2026-06-09",
        "url": "https://linux.oracle.com/errata/ELSA-2026-50304.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2026-50305 vom 2026-06-09",
        "url": "https://linux.oracle.com/errata/ELSA-2026-50305.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:2329-1 vom 2026-06-10",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-June/026679.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:2328-1 vom 2026-06-10",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-June/026680.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:2364-1 vom 2026-06-11",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-June/026701.html"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-2026-24B84F97AF vom 2026-06-12",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-2026-24b84f97af"
      }
    ],
    "source_lang": "en-US",
    "title": "Xen: Mehrere Schwachstellen",
    "tracking": {
      "current_release_date": "2026-06-14T22:00:00.000+00:00",
      "generator": {
        "date": "2026-06-15T07:40:27.105+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.6.0"
        }
      },
      "id": "WID-SEC-W-2026-1851",
      "initial_release_date": "2026-06-09T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-06-09T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2026-06-10T22:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2026-06-11T22:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2026-06-14T22:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von Fedora aufgenommen"
        }
      ],
      "status": "final",
      "version": "4"
    }
  },
  "product_tree": {
    "branches": [
      {
        "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": "\u003e=3.2",
                "product": {
                  "name": "Open Source Xen \u003e=3.2",
                  "product_id": "T055086"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003e=3.2",
                "product": {
                  "name": "Open Source Xen \u003e=3.2",
                  "product_id": "T055086-fixed"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003e=3.3",
                "product": {
                  "name": "Open Source Xen \u003e=3.3",
                  "product_id": "T055087"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003e=3.3",
                "product": {
                  "name": "Open Source Xen \u003e=3.3",
                  "product_id": "T055087-fixed"
                }
              },
              {
                "category": "product_version",
                "name": "Arm",
                "product": {
                  "name": "Open Source Xen Arm",
                  "product_id": "T055088",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:xen:xen:arm"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003e=4.15",
                "product": {
                  "name": "Open Source Xen \u003e=4.15",
                  "product_id": "T055089"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003e=4.15",
                "product": {
                  "name": "Open Source Xen \u003e=4.15",
                  "product_id": "T055089-fixed"
                }
              }
            ],
            "category": "product_name",
            "name": "Xen"
          }
        ],
        "category": "vendor",
        "name": "Open Source"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Oracle Linux",
            "product": {
              "name": "Oracle Linux",
              "product_id": "T004914",
              "product_identification_helper": {
                "cpe": "cpe:/o:oracle:linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Oracle"
      },
      {
        "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-2026-42487",
      "product_status": {
        "known_affected": [
          "T055089",
          "T002207",
          "T055087",
          "T004914",
          "74185"
        ]
      },
      "release_date": "2026-06-09T22:00:00.000+00:00",
      "title": "CVE-2026-42487"
    },
    {
      "cve": "CVE-2026-42489",
      "product_status": {
        "known_affected": [
          "T055089",
          "T002207",
          "T004914",
          "74185"
        ]
      },
      "release_date": "2026-06-09T22:00:00.000+00:00",
      "title": "CVE-2026-42489"
    },
    {
      "cve": "CVE-2026-42490",
      "product_status": {
        "known_affected": [
          "T055089",
          "T002207",
          "T004914",
          "74185"
        ]
      },
      "release_date": "2026-06-09T22:00:00.000+00:00",
      "title": "CVE-2026-42490"
    },
    {
      "cve": "CVE-2025-10263",
      "product_status": {
        "known_affected": [
          "T055088",
          "T002207",
          "T004914",
          "74185"
        ]
      },
      "release_date": "2026-06-09T22:00:00.000+00:00",
      "title": "CVE-2025-10263"
    },
    {
      "cve": "CVE-2026-42488",
      "product_status": {
        "known_affected": [
          "T002207",
          "T004914",
          "74185"
        ]
      },
      "release_date": "2026-06-09T22:00:00.000+00:00",
      "title": "CVE-2026-42488"
    }
  ]
}


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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.