{
  "document": {
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE"
      }
    },
    "lang": "nl",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this page to enhance access to its information and security advisories. The use of this security advisory is subject to the following terms and conditions:\n\n    NCSC-NL makes every reasonable effort to ensure that the content of this page is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or continuous keeping up-to-date. The information contained in this security advisory is intended solely for the purpose of providing general information to professional users. No rights can be derived from the information provided therein.\n\n    NCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of this security advisory. This includes damage resulting from the inaccuracy of incompleteness of the information contained in the advisory.\n    This security advisory is subject to Dutch law. All disputes related to or arising from the use of this advisory will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings."
      },
      {
        "category": "description",
        "text": "AMD heeft een kwetsbaarheid verholpen in specifieke processor modellen door middel van een mitigatie die is opgenomen in de Windows update van mei 2026.",
        "title": "Feiten"
      },
      {
        "category": "description",
        "text": "De kwetsbaarheid betreft bepaalde AMD processors. Een lokale kwaadwillende kan de kwetsbaarheid misbruiken om willekeurige code uit te voeren op het systeem.",
        "title": "Interpretaties"
      },
      {
        "category": "description",
        "text": "De mitigatie is opgenomen in de Windows update van mei 2026 die beschikbaar is gesteld om de kwetsbaarheid te verhelpen voor windows-gebaseerde systemen. Overige OS-vendors brengen eigen updates uit. Zie bijgevoegde referenties voor meer informatie.\n\n",
        "title": "Oplossingen"
      },
      {
        "category": "general",
        "text": "medium",
        "title": "Kans"
      },
      {
        "category": "general",
        "text": "high",
        "title": "Schade"
      },
      {
        "category": "general",
        "text": "Improper Isolation of Shared Resources on System-on-a-Chip (SoC)",
        "title": "CWE-1189"
      }
    ],
    "publisher": {
      "category": "coordinator",
      "contact_details": "cert@ncsc.nl",
      "name": "Nationaal Cyber Security Centrum",
      "namespace": "https://www.ncsc.nl/"
    },
    "references": [
      {
        "category": "external",
        "summary": "Reference",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-2026-7b2b7837b6"
      },
      {
        "category": "external",
        "summary": "Reference",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-2026-8b2957222f"
      },
      {
        "category": "external",
        "summary": "Reference",
        "url": "https://msrc.microsoft.com/update-guide/"
      },
      {
        "category": "external",
        "summary": "Reference",
        "url": "https://support.lenovo.com/us/en/product_security/LEN-216977"
      },
      {
        "category": "external",
        "summary": "Reference",
        "url": "https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7052.html"
      },
      {
        "category": "external",
        "summary": "Reference",
        "url": "https://xenbits.xen.org/xsa/advisory-490.html"
      }
    ],
    "title": "Kwetsbaarheid verholpen in AMD processors",
    "tracking": {
      "current_release_date": "2026-05-15T06:49:15.153183Z",
      "generator": {
        "date": "2025-08-04T16:30:00Z",
        "engine": {
          "name": "V.A.",
          "version": "1.3"
        }
      },
      "id": "NCSC-2026-0158",
      "initial_release_date": "2026-05-15T06:49:15.153183Z",
      "revision_history": [
        {
          "date": "2026-05-15T06:49:15.153183Z",
          "number": "1.0.0",
          "summary": "Initiele versie"
        }
      ],
      "status": "final",
      "version": "1.0.0"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-1"
                }
              }
            ],
            "category": "product_name",
            "name": "Prozessor"
          }
        ],
        "category": "vendor",
        "name": "AMD"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-2"
                }
              }
            ],
            "category": "product_name",
            "name": "xen"
          }
        ],
        "category": "vendor",
        "name": "Debian"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-3"
                }
              }
            ],
            "category": "product_name",
            "name": "Dell PowerEdge"
          }
        ],
        "category": "vendor",
        "name": "Dell"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-4"
                }
              }
            ],
            "category": "product_name",
            "name": "Fedora Linux"
          }
        ],
        "category": "vendor",
        "name": "Fedora"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-5"
                }
              }
            ],
            "category": "product_name",
            "name": "Cloud Platform"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-6"
                }
              }
            ],
            "category": "product_name",
            "name": "Google Cloud Platform"
          }
        ],
        "category": "vendor",
        "name": "Google"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-7"
                }
              }
            ],
            "category": "product_name",
            "name": "Lenovo Computer"
          }
        ],
        "category": "vendor",
        "name": "Lenovo"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-8"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft Windows Admin Center"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-9"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft Windows Server 2012"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-10"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft Windows Server 2012 R2"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-11"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft Windows Server 2016"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-12"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft Windows Server 2019"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-13"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft Windows Server 2022"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-14"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft Windows Server 2025"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-15"
                }
              }
            ],
            "category": "product_name",
            "name": "Windows 10"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-16"
                }
              }
            ],
            "category": "product_name",
            "name": "Windows 10 Version 1607 for 32-bit Systems"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-17"
                }
              }
            ],
            "category": "product_name",
            "name": "Windows 10 Version 1607 for x64-based Systems"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-18"
                }
              }
            ],
            "category": "product_name",
            "name": "Windows 10 Version 1809 for 32-bit Systems"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-19"
                }
              }
            ],
            "category": "product_name",
            "name": "Windows 10 Version 1809 for x64-based Systems"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-20"
                }
              }
            ],
            "category": "product_name",
            "name": "Windows 10 Version 21H2 for 32-bit Systems"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-21"
                }
              }
            ],
            "category": "product_name",
            "name": "Windows 10 Version 21H2 for ARM64-based Systems"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-22"
                }
              }
            ],
            "category": "product_name",
            "name": "Windows 10 Version 21H2 for x64-based Systems"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-23"
                }
              }
            ],
            "category": "product_name",
            "name": "Windows 10 Version 22H2 for 32-bit Systems"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-24"
                }
              }
            ],
            "category": "product_name",
            "name": "Windows 10 Version 22H2 for ARM64-based Systems"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-25"
                }
              }
            ],
            "category": "product_name",
            "name": "Windows 10 Version 22H2 for x64-based Systems"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-26"
                }
              }
            ],
            "category": "product_name",
            "name": "Windows 11"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-27"
                }
              }
            ],
            "category": "product_name",
            "name": "Windows 11 Version 23H2 for ARM64-based Systems"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-28"
                }
              }
            ],
            "category": "product_name",
            "name": "Windows 11 Version 23H2 for x64-based Systems"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-29"
                }
              }
            ],
            "category": "product_name",
            "name": "Windows 11 Version 24H2 for ARM64-based Systems"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-30"
                }
              }
            ],
            "category": "product_name",
            "name": "Windows 11 Version 24H2 for x64-based Systems"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-31"
                }
              }
            ],
            "category": "product_name",
            "name": "Windows 11 Version 25H2 for ARM64-based Systems"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-32"
                }
              }
            ],
            "category": "product_name",
            "name": "Windows 11 Version 25H2 for x64-based Systems"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-33"
                }
              }
            ],
            "category": "product_name",
            "name": "Windows 11 Version 26H1 for ARM64-based Systems"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-34"
                }
              }
            ],
            "category": "product_name",
            "name": "Windows 11 Version 26H1 for x64-based Systems"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-35"
                }
              }
            ],
            "category": "product_name",
            "name": "Windows Server 2016"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-36"
                }
              }
            ],
            "category": "product_name",
            "name": "Windows Server 2016 (Server Core installation)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-37"
                }
              }
            ],
            "category": "product_name",
            "name": "Windows Server 2019"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-38"
                }
              }
            ],
            "category": "product_name",
            "name": "Windows Server 2019 (Server Core installation)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-39"
                }
              }
            ],
            "category": "product_name",
            "name": "Windows Server 2022"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-40"
                }
              }
            ],
            "category": "product_name",
            "name": "Windows Server 2022 (Server Core installation)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-41"
                }
              }
            ],
            "category": "product_name",
            "name": "Windows Server 2022, 23H2 Edition (Server Core installation)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-42"
                }
              }
            ],
            "category": "product_name",
            "name": "Windows Server 2025"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-43"
                }
              }
            ],
            "category": "product_name",
            "name": "Windows Server 2025 (Server Core installation)"
          }
        ],
        "category": "vendor",
        "name": "Microsoft"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-44"
                }
              }
            ],
            "category": "product_name",
            "name": "Xen"
          }
        ],
        "category": "vendor",
        "name": "Open Source"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2025-54518",
      "cwe": {
        "id": "CWE-1189",
        "name": "Improper Isolation of Shared Resources on System-on-a-Chip (SoC)"
      },
      "notes": [
        {
          "category": "other",
          "text": "Improper Isolation of Shared Resources on System-on-a-Chip (SoC)",
          "title": "CWE-1189"
        },
        {
          "category": "description",
          "text": "AMD Zen 2-based processors have a vulnerability in CPU operation cache isolation that may allow instruction corruption across privilege levels, mitigated by a Windows update released in May 2026.",
          "title": "Summary"
        },
        {
          "category": "general",
          "text": "CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
          "title": "CVSSV4"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1",
          "CSAFPID-2",
          "CSAFPID-3",
          "CSAFPID-4",
          "CSAFPID-5",
          "CSAFPID-6",
          "CSAFPID-7",
          "CSAFPID-8",
          "CSAFPID-9",
          "CSAFPID-10",
          "CSAFPID-11",
          "CSAFPID-12",
          "CSAFPID-13",
          "CSAFPID-14",
          "CSAFPID-15",
          "CSAFPID-16",
          "CSAFPID-17",
          "CSAFPID-18",
          "CSAFPID-19",
          "CSAFPID-20",
          "CSAFPID-21",
          "CSAFPID-22",
          "CSAFPID-23",
          "CSAFPID-24",
          "CSAFPID-25",
          "CSAFPID-26",
          "CSAFPID-27",
          "CSAFPID-28",
          "CSAFPID-29",
          "CSAFPID-30",
          "CSAFPID-31",
          "CSAFPID-32",
          "CSAFPID-33",
          "CSAFPID-34",
          "CSAFPID-35",
          "CSAFPID-36",
          "CSAFPID-37",
          "CSAFPID-38",
          "CSAFPID-39",
          "CSAFPID-40",
          "CSAFPID-41",
          "CSAFPID-42",
          "CSAFPID-43",
          "CSAFPID-44"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2025-54518 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2025/cve-2025-54518.json"
        }
      ],
      "title": "CVE-2025-54518"
    }
  ]
}