WID-SEC-W-2026-1306

Vulnerability from csaf_certbund - Published: 2026-04-28 22:00 - Updated: 2026-08-10 22:00
Summary
Xen und Citrix Systems XenServer: 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: Xen ist ein Virtueller-Maschinen-Monitor (VMM), der Hardware (x86, IA-64, PowerPC) für die darauf laufenden Systeme (Domains) paravirtualisiert. Citrix XenServer ist eine Lösung für das Management, die Konfiguration und den Betrieb virtueller Maschinen auf Servern.
Angriff: Ein Angreifer kann mehrere Schwachstellen in Xen und Citrix Systems XenServer ausnutzen, um seine Privilegien zu erhöhen, Sicherheitsmaßnahmen zu umgehen, Daten zu verändern und offenzulegen oder einen Denial-of-Service-Zustand zu verursachen.
Betroffene Betriebssysteme: - Linux - Sonstiges - Windows
Affected products
Product Identifier Version Remediation
Debian Linux
Debian
cpe:/o:debian:debian_linux:- —
SUSE Linux
SUSE
cpe:/o:suse:suse_linux:- —
Red Hat Enterprise Linux
Red Hat
cpe:/o:redhat:enterprise_linux:- —
IBM QRadar SIEM
IBM
cpe:/a:ibm:qradar_siem:- —
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:- —
Citrix Systems XenServer 8.4
Citrix Systems / XenServer
cpe:/a:citrix:xenserver:8.4 8.4
Oracle Linux
Oracle
cpe:/o:oracle:linux:- —
Fedora Linux
Fedora
cpe:/o:fedoraproject:fedora:- —
Open Source Xen >=4.2
Open Source / Xen
>=4.2
Affected products
Product Identifier Version Remediation
Open Source Xen XSA-419
Open Source / Xen
cpe:/o:xen:xen:xsa-419 XSA-419
Debian Linux
Debian
cpe:/o:debian:debian_linux:- —
SUSE Linux
SUSE
cpe:/o:suse:suse_linux:- —
Red Hat Enterprise Linux
Red Hat
cpe:/o:redhat:enterprise_linux:- —
IBM QRadar SIEM
IBM
cpe:/a:ibm:qradar_siem:- —
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:- —
Citrix Systems XenServer 8.4
Citrix Systems / XenServer
cpe:/a:citrix:xenserver:8.4 8.4
Oracle Linux
Oracle
cpe:/o:oracle:linux:- —
Fedora Linux
Fedora
cpe:/o:fedoraproject:fedora:- —
Affected products
Product Identifier Version Remediation
Debian Linux
Debian
cpe:/o:debian:debian_linux:- —
SUSE Linux
SUSE
cpe:/o:suse:suse_linux:- —
Red Hat Enterprise Linux
Red Hat
cpe:/o:redhat:enterprise_linux:- —
IBM QRadar SIEM
IBM
cpe:/a:ibm:qradar_siem:- —
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:- —
Citrix Systems XenServer 8.4
Citrix Systems / XenServer
cpe:/a:citrix:xenserver:8.4 8.4
Oracle Linux
Oracle
cpe:/o:oracle:linux:- —
Fedora Linux
Fedora
cpe:/o:fedoraproject:fedora:- —
Open Source Xen XAPI
Open Source / Xen
cpe:/o:xen:xen:xapi XAPI
Affected products
Known affected 9 products, the same list as for CVE-2026-23559
Affected products
Known affected 9 products, the same list as for CVE-2026-23559
Affected products
Product Identifier Version Remediation
Debian Linux
Debian
cpe:/o:debian:debian_linux:- —
SUSE Linux
SUSE
cpe:/o:suse:suse_linux:- —
Red Hat Enterprise Linux
Red Hat
cpe:/o:redhat:enterprise_linux:- —
IBM QRadar SIEM
IBM
cpe:/a:ibm:qradar_siem:- —
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:- —
Oracle Linux
Oracle
cpe:/o:oracle:linux:- —
Fedora Linux
Fedora
cpe:/o:fedoraproject:fedora:- —
Open Source Xen XAPI
Open Source / Xen
cpe:/o:xen:xen:xapi XAPI
Affected products
Known affected 8 products, the same list as for CVE-2026-23562
Affected products
Product Identifier Version Remediation
Debian Linux
Debian
cpe:/o:debian:debian_linux:- —
SUSE Linux
SUSE
cpe:/o:suse:suse_linux:- —
Red Hat Enterprise Linux
Red Hat
cpe:/o:redhat:enterprise_linux:- —
IBM QRadar SIEM
IBM
cpe:/a:ibm:qradar_siem:- —
SUSE openSUSE
SUSE
cpe:/o:suse:opensuse:- —
Oracle Linux
Oracle
cpe:/o:oracle:linux:- —
Fedora Linux
Fedora
cpe:/o:fedoraproject:fedora:- —
Affected products
Known affected 7 products, the same list as for CVE-2026-23557
Affected products
Known affected 7 products, the same list as for CVE-2026-23557
References
URL Category
https://wid.cert-bund.de/.well-known/csaf/white/2… self
https://wid.cert-bund.de/portal/wid/securityadvis… self
https://xenbits.xen.org/xsa/advisory-483.html external
https://xenbits.xen.org/xsa/advisory-484.html external
https://xenbits.xen.org/xsa/advisory-485.html external
https://xenbits.xen.org/xsa/advisory-486.html external
https://xenbits.xen.org/xsa/advisory-487.html external
https://xenbits.xen.org/xsa/advisory-489.html external
https://support.citrix.com/support-home/kbsearch/… external
https://lists.suse.com/pipermail/sle-security-upd… external
https://bodhi.fedoraproject.org/updates/FEDORA-20… external
https://bodhi.fedoraproject.org/updates/FEDORA-20… external
https://lists.debian.org/debian-security-announce… external
https://lists.debian.org/debian-security-announce… external
https://lists.opensuse.org/archives/list/security… external
https://lists.suse.com/pipermail/sle-security-upd… external
https://lists.suse.com/pipermail/sle-security-upd… external
https://lists.suse.com/pipermail/sle-security-upd… external
https://lists.suse.com/pipermail/sle-security-upd… external
https://lists.suse.com/pipermail/sle-security-upd… external
https://lists.debian.org/debian-lts-announce/2026… external
https://lists.suse.com/pipermail/sle-security-upd… external
https://lists.suse.com/pipermail/sle-security-upd… external
https://access.redhat.com/errata/RHSA-2026:24381 external
http://linux.oracle.com/errata/ELSA-2026-50372.html external
https://access.redhat.com/errata/RHSA-2026:48386 external
https://www.ibm.com/support/pages/node/7282618 external
https://security-tracker.debian.org/tracker/DSA-6424-1 external
https://access.redhat.com/errata/RHSA-2026:52764 external

{
  "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": "Xen ist ein Virtueller-Maschinen-Monitor (VMM), der Hardware (x86, IA-64, PowerPC) f\u00fcr die darauf laufenden Systeme (Domains) paravirtualisiert.\r\nCitrix XenServer ist eine L\u00f6sung f\u00fcr das Management, die Konfiguration und den Betrieb virtueller Maschinen auf Servern.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein Angreifer kann mehrere Schwachstellen in Xen und Citrix Systems XenServer ausnutzen, um seine Privilegien zu erh\u00f6hen, Sicherheitsma\u00dfnahmen zu umgehen, Daten zu ver\u00e4ndern und offenzulegen oder einen Denial-of-Service-Zustand zu verursachen.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Linux\n- Sonstiges\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-2026-1306 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1306.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-1306 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1306"
      },
      {
        "category": "external",
        "summary": "Xen Security Advisory vom 2026-04-28",
        "url": "https://xenbits.xen.org/xsa/advisory-483.html"
      },
      {
        "category": "external",
        "summary": "Xen Security Advisory vom 2026-04-28",
        "url": "https://xenbits.xen.org/xsa/advisory-484.html"
      },
      {
        "category": "external",
        "summary": "Xen Security Advisory vom 2026-04-28",
        "url": "https://xenbits.xen.org/xsa/advisory-485.html"
      },
      {
        "category": "external",
        "summary": "Xen Security Advisory vom 2026-04-28",
        "url": "https://xenbits.xen.org/xsa/advisory-486.html"
      },
      {
        "category": "external",
        "summary": "Xen Security Advisory vom 2026-04-28",
        "url": "https://xenbits.xen.org/xsa/advisory-487.html"
      },
      {
        "category": "external",
        "summary": "Xen Security Advisory vom 2026-04-28",
        "url": "https://xenbits.xen.org/xsa/advisory-489.html"
      },
      {
        "category": "external",
        "summary": "Citrix XenServer Security Update vom 2026-04-28",
        "url": "https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696527\u0026articleURL=XenServer_Security_Update_for_Multiple_Issues"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:1657-1 vom 2026-04-29",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-April/025766.html"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-2026-0C9AFF64A5 vom 2026-04-29",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-2026-0c9aff64a5"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-2026-78CD69D9AE vom 2026-04-29",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-2026-78cd69d9ae"
      },
      {
        "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": "openSUSE Security Update OPENSUSE-SU-2026:10660-1 vom 2026-05-04",
        "url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/2ZGHLYRMCFK5DY7XYNQC3RXMO73GDQX6/"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:1692-1 vom 2026-05-05",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-May/025844.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:1743-1 vom 2026-05-07",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-May/025928.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:1998-1 vom 2026-05-19",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-May/026142.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:2066-1 vom 2026-05-26",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-May/026281.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:2102-1 vom 2026-05-28",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-May/026374.html"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DLA-4606 vom 2026-05-29",
        "url": "https://lists.debian.org/debian-lts-announce/2026/05/msg00051.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:21860-1 vom 2026-06-01",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-June/026426.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:2195-1 vom 2026-06-01",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-June/026416.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:24381 vom 2026-06-08",
        "url": "https://access.redhat.com/errata/RHSA-2026:24381"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2026-50372 vom 2026-07-07",
        "url": "http://linux.oracle.com/errata/ELSA-2026-50372.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:48386 vom 2026-07-30",
        "url": "https://access.redhat.com/errata/RHSA-2026:48386"
      },
      {
        "category": "external",
        "summary": "IBM Security Bulletin 7282618 vom 2026-08-05",
        "url": "https://www.ibm.com/support/pages/node/7282618"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DSA-6424 vom 2026-08-10",
        "url": "https://security-tracker.debian.org/tracker/DSA-6424-1"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:52764 vom 2026-08-10",
        "url": "https://access.redhat.com/errata/RHSA-2026:52764"
      }
    ],
    "source_lang": "en-US",
    "title": "Xen und Citrix Systems XenServer: Mehrere Schwachstellen",
    "tracking": {
      "current_release_date": "2026-08-10T22:00:00.000+00:00",
      "generator": {
        "date": "2026-08-11T09:37:01.174+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.6.0"
        }
      },
      "id": "WID-SEC-W-2026-1306",
      "initial_release_date": "2026-04-28T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-04-28T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2026-04-29T22:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von SUSE und Fedora aufgenommen"
        },
        {
          "date": "2026-05-03T22:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von Debian und European Union Vulnerability Database aufgenommen"
        },
        {
          "date": "2026-05-04T22:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von openSUSE aufgenommen"
        },
        {
          "date": "2026-05-05T22:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2026-05-07T22:00:00.000+00:00",
          "number": "6",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2026-05-19T22:00:00.000+00:00",
          "number": "7",
          "summary": "Neue Updates von SUSE und European Union Vulnerability Database aufgenommen"
        },
        {
          "date": "2026-05-26T22:00:00.000+00:00",
          "number": "8",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2026-05-28T22:00:00.000+00:00",
          "number": "9",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2026-05-31T22:00:00.000+00:00",
          "number": "10",
          "summary": "Neue Updates von Debian aufgenommen"
        },
        {
          "date": "2026-06-01T22:00:00.000+00:00",
          "number": "11",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2026-06-08T22:00:00.000+00:00",
          "number": "12",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2026-07-06T22:00:00.000+00:00",
          "number": "13",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2026-07-09T22:00:00.000+00:00",
          "number": "14",
          "summary": "Referenz(en) aufgenommen: EUVD-2026-42600"
        },
        {
          "date": "2026-07-29T22:00:00.000+00:00",
          "number": "15",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2026-08-05T22:00:00.000+00:00",
          "number": "16",
          "summary": "Neue Updates von IBM aufgenommen"
        },
        {
          "date": "2026-08-09T22:00:00.000+00:00",
          "number": "17",
          "summary": "Neue Updates von Debian aufgenommen"
        },
        {
          "date": "2026-08-10T22:00:00.000+00:00",
          "number": "18",
          "summary": "Neue Updates von Red Hat aufgenommen"
        }
      ],
      "status": "final",
      "version": "18"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "8.4",
                "product": {
                  "name": "Citrix Systems XenServer 8.4",
                  "product_id": "T053402",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:citrix:xenserver:8.4"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "XenServer"
          }
        ],
        "category": "vendor",
        "name": "Citrix Systems"
      },
      {
        "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": [
          {
            "category": "product_name",
            "name": "IBM QRadar SIEM",
            "product": {
              "name": "IBM QRadar SIEM",
              "product_id": "T021415",
              "product_identification_helper": {
                "cpe": "cpe:/a:ibm:qradar_siem:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "IBM"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003e=4.0",
                "product": {
                  "name": "Open Source Xen \u003e=4.0",
                  "product_id": "T053396"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003e=4.0",
                "product": {
                  "name": "Open Source Xen \u003e=4.0",
                  "product_id": "T053396-fixed"
                }
              },
              {
                "category": "product_version",
                "name": "XSA-419",
                "product": {
                  "name": "Open Source Xen XSA-419",
                  "product_id": "T053397",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:xen:xen:xsa-419"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "XAPI",
                "product": {
                  "name": "Open Source Xen XAPI",
                  "product_id": "T053398",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:xen:xen:xapi"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003e=4.2",
                "product": {
                  "name": "Open Source Xen \u003e=4.2",
                  "product_id": "T053399"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003e=4.2",
                "product": {
                  "name": "Open Source Xen \u003e=4.2",
                  "product_id": "T053399-fixed"
                }
              },
              {
                "category": "product_version_range",
                "name": "Linux kernel \u003e=4.13",
                "product": {
                  "name": "Open Source Xen Linux kernel \u003e=4.13",
                  "product_id": "T053400"
                }
              },
              {
                "category": "product_version_range",
                "name": "Linux kernel \u003e=4.13",
                "product": {
                  "name": "Open Source Xen Linux kernel \u003e=4.13",
                  "product_id": "T053400-fixed"
                }
              },
              {
                "category": "product_version_range",
                "name": "Linux PVH or HVM \u003e=3.8",
                "product": {
                  "name": "Open Source Xen Linux PVH or HVM \u003e=3.8",
                  "product_id": "T053401"
                }
              },
              {
                "category": "product_version_range",
                "name": "Linux PVH or HVM \u003e=3.8",
                "product": {
                  "name": "Open Source Xen Linux PVH or HVM \u003e=3.8",
                  "product_id": "T053401-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": "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": "product_name",
            "name": "SUSE openSUSE",
            "product": {
              "name": "SUSE openSUSE",
              "product_id": "T027843",
              "product_identification_helper": {
                "cpe": "cpe:/o:suse:opensuse:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "SUSE"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-23558",
      "product_status": {
        "known_affected": [
          "2951",
          "T002207",
          "67646",
          "T021415",
          "T027843",
          "T053402",
          "T004914",
          "74185",
          "T053399"
        ]
      },
      "release_date": "2026-04-28T22:00:00.000+00:00",
      "title": "CVE-2026-23558"
    },
    {
      "cve": "CVE-2026-23556",
      "product_status": {
        "known_affected": [
          "T053397",
          "2951",
          "T002207",
          "67646",
          "T021415",
          "T027843",
          "T053402",
          "T004914",
          "74185"
        ]
      },
      "release_date": "2026-04-28T22:00:00.000+00:00",
      "title": "CVE-2026-23556"
    },
    {
      "cve": "CVE-2026-23559",
      "product_status": {
        "known_affected": [
          "2951",
          "T002207",
          "67646",
          "T021415",
          "T027843",
          "T053402",
          "T004914",
          "74185",
          "T053398"
        ]
      },
      "release_date": "2026-04-28T22:00:00.000+00:00",
      "title": "CVE-2026-23559"
    },
    {
      "cve": "CVE-2026-23560",
      "product_status": {
        "known_affected": [
          "2951",
          "T002207",
          "67646",
          "T021415",
          "T027843",
          "T053402",
          "T004914",
          "74185",
          "T053398"
        ]
      },
      "release_date": "2026-04-28T22:00:00.000+00:00",
      "title": "CVE-2026-23560"
    },
    {
      "cve": "CVE-2026-23561",
      "product_status": {
        "known_affected": [
          "2951",
          "T002207",
          "67646",
          "T021415",
          "T027843",
          "T053402",
          "T004914",
          "74185",
          "T053398"
        ]
      },
      "release_date": "2026-04-28T22:00:00.000+00:00",
      "title": "CVE-2026-23561"
    },
    {
      "cve": "CVE-2026-23562",
      "product_status": {
        "known_affected": [
          "2951",
          "T002207",
          "67646",
          "T021415",
          "T027843",
          "T004914",
          "74185",
          "T053398"
        ]
      },
      "release_date": "2026-04-28T22:00:00.000+00:00",
      "title": "CVE-2026-23562"
    },
    {
      "cve": "CVE-2026-42486",
      "product_status": {
        "known_affected": [
          "2951",
          "T002207",
          "67646",
          "T021415",
          "T027843",
          "T004914",
          "74185",
          "T053398"
        ]
      },
      "release_date": "2026-04-28T22:00:00.000+00:00",
      "title": "CVE-2026-42486"
    },
    {
      "cve": "CVE-2026-23557",
      "product_status": {
        "known_affected": [
          "2951",
          "T002207",
          "67646",
          "T021415",
          "T027843",
          "T004914",
          "74185"
        ]
      },
      "release_date": "2026-04-28T22:00:00.000+00:00",
      "title": "CVE-2026-23557"
    },
    {
      "cve": "CVE-2026-31786",
      "product_status": {
        "known_affected": [
          "2951",
          "T002207",
          "67646",
          "T021415",
          "T027843",
          "T004914",
          "74185"
        ]
      },
      "release_date": "2026-04-28T22:00:00.000+00:00",
      "title": "CVE-2026-31786"
    },
    {
      "cve": "CVE-2026-31787",
      "product_status": {
        "known_affected": [
          "2951",
          "T002207",
          "67646",
          "T021415",
          "T027843",
          "T004914",
          "74185"
        ]
      },
      "release_date": "2026-04-28T22:00:00.000+00:00",
      "title": "CVE-2026-31787"
    }
  ]
}



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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Events included in the timeline

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    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.