{
	"document":{
		"aggregate_severity":{
			"namespace":"https://nvd.nist.gov/vuln-metrics/cvss",
			"text":"MEDIUM"
		},
		"category":"csaf_vex",
		"csaf_version":"2.0",
		"distribution":{
			"tlp":{
				"label":"WHITE",
				"url":"https:/www.first.org/tlp/"
			}
		},
		"lang":"en",
		"notes":[
			{
				"text":"Exposure of sensitive information caused by incorrect data forwarding during transient execution for some Intel(R) Processors within Ring 0: Hypervisor and Kernel may allow information disclosure. System software adversary with a privileged user combined with a high complexity attack may enable data exposure. This result may potentially occur via local access when attack requirements are not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (none) and availability (none) impacts.",
				"category":"general",
				"title":"Synopsis"
			}
		],
		"publisher":null,
		"references":[
			{
				"summary":"nvd cve",
				"category":"external",
				"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-20917"
			},
			{
				"summary":"CVE-2026-20917 vex file",
				"category":"self",
				"url":"https://repo.openeuler.org/security/data/csaf/cve/2026/csaf-openeuler-cve-2026-20917.json"
			},
			{
				"summary":"openEuler-SA-2026-3408",
				"category":"self",
				"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3408"
			},
			{
				"summary":"CVE-2026-20917",
				"category":"self",
				"url":"https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-20917&packageName=microcode_ctl"
			}
		],
		"title":"openEuler cve CVE-2026-20917",
		"tracking":{
			"initial_release_date":"2026-08-26T11:12:44+08:00",
			"revision_history":[
				{
					"date":"2026-08-26T11:12:44+08:00",
					"summary":"Initial",
					"number":"1.0.0"
				}
			],
			"generator":{
				"date":"2026-08-26T11:12:44+08:00",
				"engine":{
					"name":"openEuler CSAF Tool V1.0"
				}
			},
			"current_release_date":"2026-08-26T11:12:44+08:00",
			"id":"CVE-2026-20917",
			"version":"1.0.0",
			"status":"interim"
		}
	},
	"product_tree":{
		"branches":[
			{
				"name":"openEuler",
				"category":"vendor",
				"branches":[
					{
						"name":"openEuler",
						"branches":[
							{
								"product":{
									"product_identification_helper":{
										"cpe":"cpe:/a:openEuler:openEuler:20.03-LTS-SP4"
									},
									"product_id":"openEuler-20.03-LTS-SP4",
									"name":"openEuler-20.03-LTS-SP4"
								},
								"name":"openEuler-20.03-LTS-SP4",
								"category":"product_version"
							},
							{
								"product":{
									"product_identification_helper":{
										"cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4"
									},
									"product_id":"openEuler-22.03-LTS-SP4",
									"name":"openEuler-22.03-LTS-SP4"
								},
								"name":"openEuler-22.03-LTS-SP4",
								"category":"product_version"
							},
							{
								"product":{
									"product_identification_helper":{
										"cpe":"cpe:/a:openEuler:openEuler:24.03-LTS-SP1"
									},
									"product_id":"openEuler-24.03-LTS-SP1",
									"name":"openEuler-24.03-LTS-SP1"
								},
								"name":"openEuler-24.03-LTS-SP1",
								"category":"product_version"
							},
							{
								"product":{
									"product_identification_helper":{
										"cpe":"cpe:/a:openEuler:openEuler:24.03-LTS-SP3"
									},
									"product_id":"openEuler-24.03-LTS-SP3",
									"name":"openEuler-24.03-LTS-SP3"
								},
								"name":"openEuler-24.03-LTS-SP3",
								"category":"product_version"
							},
							{
								"product":{
									"product_identification_helper":{
										"cpe":"cpe:/a:openEuler:openEuler:24.03-LTS-SP4"
									},
									"product_id":"openEuler-24.03-LTS-SP4",
									"name":"openEuler-24.03-LTS-SP4"
								},
								"name":"openEuler-24.03-LTS-SP4",
								"category":"product_version"
							}
						],
						"category":"product_name"
					},
					{
						"name":"src",
						"branches":[
							{
								"product":{
									"product_identification_helper":{
										"cpe":"cpe:/a:openEuler:openEuler:20.03-LTS-SP4"
									},
									"product_id":"microcode_ctl-20260811-1.oe2003sp4.src.rpm",
									"name":"microcode_ctl-20260811-1.oe2003sp4.src.rpm"
								},
								"name":"microcode_ctl-20260811-1.oe2003sp4.src.rpm",
								"category":"product_version"
							},
							{
								"product":{
									"product_identification_helper":{
										"cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4"
									},
									"product_id":"microcode_ctl-20260811-1.oe2203sp4.src.rpm",
									"name":"microcode_ctl-20260811-1.oe2203sp4.src.rpm"
								},
								"name":"microcode_ctl-20260811-1.oe2203sp4.src.rpm",
								"category":"product_version"
							},
							{
								"product":{
									"product_identification_helper":{
										"cpe":"cpe:/a:openEuler:openEuler:24.03-LTS-SP1"
									},
									"product_id":"microcode_ctl-20260811-1.oe2403sp1.src.rpm",
									"name":"microcode_ctl-20260811-1.oe2403sp1.src.rpm"
								},
								"name":"microcode_ctl-20260811-1.oe2403sp1.src.rpm",
								"category":"product_version"
							},
							{
								"product":{
									"product_identification_helper":{
										"cpe":"cpe:/a:openEuler:openEuler:24.03-LTS-SP3"
									},
									"product_id":"microcode_ctl-20260811-1.oe2403sp3.src.rpm",
									"name":"microcode_ctl-20260811-1.oe2403sp3.src.rpm"
								},
								"name":"microcode_ctl-20260811-1.oe2403sp3.src.rpm",
								"category":"product_version"
							},
							{
								"product":{
									"product_identification_helper":{
										"cpe":"cpe:/a:openEuler:openEuler:24.03-LTS-SP4"
									},
									"product_id":"microcode_ctl-20260811-1.oe2403sp4.src.rpm",
									"name":"microcode_ctl-20260811-1.oe2403sp4.src.rpm"
								},
								"name":"microcode_ctl-20260811-1.oe2403sp4.src.rpm",
								"category":"product_version"
							}
						],
						"category":"architecture"
					},
					{
						"name":"x86_64",
						"branches":[
							{
								"product":{
									"product_identification_helper":{
										"cpe":"cpe:/a:openEuler:openEuler:20.03-LTS-SP4"
									},
									"product_id":"microcode_ctl-20260811-1.oe2003sp4.x86_64.rpm",
									"name":"microcode_ctl-20260811-1.oe2003sp4.x86_64.rpm"
								},
								"name":"microcode_ctl-20260811-1.oe2003sp4.x86_64.rpm",
								"category":"product_version"
							},
							{
								"product":{
									"product_identification_helper":{
										"cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4"
									},
									"product_id":"microcode_ctl-20260811-1.oe2203sp4.x86_64.rpm",
									"name":"microcode_ctl-20260811-1.oe2203sp4.x86_64.rpm"
								},
								"name":"microcode_ctl-20260811-1.oe2203sp4.x86_64.rpm",
								"category":"product_version"
							},
							{
								"product":{
									"product_identification_helper":{
										"cpe":"cpe:/a:openEuler:openEuler:24.03-LTS-SP1"
									},
									"product_id":"microcode_ctl-20260811-1.oe2403sp1.x86_64.rpm",
									"name":"microcode_ctl-20260811-1.oe2403sp1.x86_64.rpm"
								},
								"name":"microcode_ctl-20260811-1.oe2403sp1.x86_64.rpm",
								"category":"product_version"
							},
							{
								"product":{
									"product_identification_helper":{
										"cpe":"cpe:/a:openEuler:openEuler:24.03-LTS-SP3"
									},
									"product_id":"microcode_ctl-20260811-1.oe2403sp3.x86_64.rpm",
									"name":"microcode_ctl-20260811-1.oe2403sp3.x86_64.rpm"
								},
								"name":"microcode_ctl-20260811-1.oe2403sp3.x86_64.rpm",
								"category":"product_version"
							},
							{
								"product":{
									"product_identification_helper":{
										"cpe":"cpe:/a:openEuler:openEuler:24.03-LTS-SP4"
									},
									"product_id":"microcode_ctl-20260811-1.oe2403sp4.x86_64.rpm",
									"name":"microcode_ctl-20260811-1.oe2403sp4.x86_64.rpm"
								},
								"name":"microcode_ctl-20260811-1.oe2403sp4.x86_64.rpm",
								"category":"product_version"
							}
						],
						"category":"architecture"
					}
				]
			}
		],
		"relationships":[
			{
				"relates_to_product_reference":"openEuler-20.03-LTS-SP4",
				"product_reference":"microcode_ctl-20260811-1.oe2003sp4.src.rpm",
				"full_product_name":{
					"product_id":"openEuler-20.03-LTS-SP4:microcode_ctl-20260811-1.oe2003sp4.src",
					"name":"microcode_ctl-20260811-1.oe2003sp4.src as a component of openEuler-20.03-LTS-SP4"
				},
				"category":"default_component_of"
			},
			{
				"relates_to_product_reference":"openEuler-22.03-LTS-SP4",
				"product_reference":"microcode_ctl-20260811-1.oe2203sp4.src.rpm",
				"full_product_name":{
					"product_id":"openEuler-22.03-LTS-SP4:microcode_ctl-20260811-1.oe2203sp4.src",
					"name":"microcode_ctl-20260811-1.oe2203sp4.src as a component of openEuler-22.03-LTS-SP4"
				},
				"category":"default_component_of"
			},
			{
				"relates_to_product_reference":"openEuler-24.03-LTS-SP1",
				"product_reference":"microcode_ctl-20260811-1.oe2403sp1.src.rpm",
				"full_product_name":{
					"product_id":"openEuler-24.03-LTS-SP1:microcode_ctl-20260811-1.oe2403sp1.src",
					"name":"microcode_ctl-20260811-1.oe2403sp1.src as a component of openEuler-24.03-LTS-SP1"
				},
				"category":"default_component_of"
			},
			{
				"relates_to_product_reference":"openEuler-24.03-LTS-SP3",
				"product_reference":"microcode_ctl-20260811-1.oe2403sp3.src.rpm",
				"full_product_name":{
					"product_id":"openEuler-24.03-LTS-SP3:microcode_ctl-20260811-1.oe2403sp3.src",
					"name":"microcode_ctl-20260811-1.oe2403sp3.src as a component of openEuler-24.03-LTS-SP3"
				},
				"category":"default_component_of"
			},
			{
				"relates_to_product_reference":"openEuler-24.03-LTS-SP4",
				"product_reference":"microcode_ctl-20260811-1.oe2403sp4.src.rpm",
				"full_product_name":{
					"product_id":"openEuler-24.03-LTS-SP4:microcode_ctl-20260811-1.oe2403sp4.src",
					"name":"microcode_ctl-20260811-1.oe2403sp4.src as a component of openEuler-24.03-LTS-SP4"
				},
				"category":"default_component_of"
			},
			{
				"relates_to_product_reference":"openEuler-20.03-LTS-SP4",
				"product_reference":"microcode_ctl-20260811-1.oe2003sp4.x86_64.rpm",
				"full_product_name":{
					"product_id":"openEuler-20.03-LTS-SP4:microcode_ctl-20260811-1.oe2003sp4.x86_64",
					"name":"microcode_ctl-20260811-1.oe2003sp4.x86_64 as a component of openEuler-20.03-LTS-SP4"
				},
				"category":"default_component_of"
			},
			{
				"relates_to_product_reference":"openEuler-22.03-LTS-SP4",
				"product_reference":"microcode_ctl-20260811-1.oe2203sp4.x86_64.rpm",
				"full_product_name":{
					"product_id":"openEuler-22.03-LTS-SP4:microcode_ctl-20260811-1.oe2203sp4.x86_64",
					"name":"microcode_ctl-20260811-1.oe2203sp4.x86_64 as a component of openEuler-22.03-LTS-SP4"
				},
				"category":"default_component_of"
			},
			{
				"relates_to_product_reference":"openEuler-24.03-LTS-SP1",
				"product_reference":"microcode_ctl-20260811-1.oe2403sp1.x86_64.rpm",
				"full_product_name":{
					"product_id":"openEuler-24.03-LTS-SP1:microcode_ctl-20260811-1.oe2403sp1.x86_64",
					"name":"microcode_ctl-20260811-1.oe2403sp1.x86_64 as a component of openEuler-24.03-LTS-SP1"
				},
				"category":"default_component_of"
			},
			{
				"relates_to_product_reference":"openEuler-24.03-LTS-SP3",
				"product_reference":"microcode_ctl-20260811-1.oe2403sp3.x86_64.rpm",
				"full_product_name":{
					"product_id":"openEuler-24.03-LTS-SP3:microcode_ctl-20260811-1.oe2403sp3.x86_64",
					"name":"microcode_ctl-20260811-1.oe2403sp3.x86_64 as a component of openEuler-24.03-LTS-SP3"
				},
				"category":"default_component_of"
			},
			{
				"relates_to_product_reference":"openEuler-24.03-LTS-SP4",
				"product_reference":"microcode_ctl-20260811-1.oe2403sp4.x86_64.rpm",
				"full_product_name":{
					"product_id":"openEuler-24.03-LTS-SP4:microcode_ctl-20260811-1.oe2403sp4.x86_64",
					"name":"microcode_ctl-20260811-1.oe2403sp4.x86_64 as a component of openEuler-24.03-LTS-SP4"
				},
				"category":"default_component_of"
			}
		]
	},
	"vulnerabilities":[
		{
			"cve":"CVE-2026-20917",
			"notes":[
				{
					"text":"Exposure of sensitive information caused by incorrect data forwarding during transient execution for some Intel(R) Processors within Ring 0: Hypervisor and Kernel may allow information disclosure. System software adversary with a privileged user combined with a high complexity attack may enable data exposure. This result may potentially occur via local access when attack requirements are not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (none) and availability (none) impacts.",
					"category":"description",
					"title":"Vulnerability Description"
				}
			],
			"product_status":{
				"fixed":[
					"openEuler-20.03-LTS-SP4:microcode_ctl-20260811-1.oe2003sp4.src",
					"openEuler-22.03-LTS-SP4:microcode_ctl-20260811-1.oe2203sp4.src",
					"openEuler-24.03-LTS-SP1:microcode_ctl-20260811-1.oe2403sp1.src",
					"openEuler-24.03-LTS-SP3:microcode_ctl-20260811-1.oe2403sp3.src",
					"openEuler-24.03-LTS-SP4:microcode_ctl-20260811-1.oe2403sp4.src",
					"openEuler-20.03-LTS-SP4:microcode_ctl-20260811-1.oe2003sp4.x86_64",
					"openEuler-22.03-LTS-SP4:microcode_ctl-20260811-1.oe2203sp4.x86_64",
					"openEuler-24.03-LTS-SP1:microcode_ctl-20260811-1.oe2403sp1.x86_64",
					"openEuler-24.03-LTS-SP3:microcode_ctl-20260811-1.oe2403sp3.x86_64",
					"openEuler-24.03-LTS-SP4:microcode_ctl-20260811-1.oe2403sp4.x86_64"
				]
			},
			"remediations":[
				{
					"product_ids":[
						"openEuler-20.03-LTS-SP4:microcode_ctl-20260811-1.oe2003sp4.src",
						"openEuler-22.03-LTS-SP4:microcode_ctl-20260811-1.oe2203sp4.src",
						"openEuler-24.03-LTS-SP1:microcode_ctl-20260811-1.oe2403sp1.src",
						"openEuler-24.03-LTS-SP3:microcode_ctl-20260811-1.oe2403sp3.src",
						"openEuler-24.03-LTS-SP4:microcode_ctl-20260811-1.oe2403sp4.src",
						"openEuler-20.03-LTS-SP4:microcode_ctl-20260811-1.oe2003sp4.x86_64",
						"openEuler-22.03-LTS-SP4:microcode_ctl-20260811-1.oe2203sp4.x86_64",
						"openEuler-24.03-LTS-SP1:microcode_ctl-20260811-1.oe2403sp1.x86_64",
						"openEuler-24.03-LTS-SP3:microcode_ctl-20260811-1.oe2403sp3.x86_64",
						"openEuler-24.03-LTS-SP4:microcode_ctl-20260811-1.oe2403sp4.x86_64"
					],
					"details":"microcode_ctl security update",
					"category":"vendor_fix",
					"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3408"
				}
			],
			"scores":[
				{
					"cvss_v3":{
						"baseSeverity":"MEDIUM",
						"baseScore":4.0,
						"vectorString":"CVSS:3.1/AV:L/AC:H/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N",
						"version":"3.1"
					},
					"products":[
						"openEuler-20.03-LTS-SP4:microcode_ctl-20260811-1.oe2003sp4.src",
						"openEuler-22.03-LTS-SP4:microcode_ctl-20260811-1.oe2203sp4.src",
						"openEuler-24.03-LTS-SP1:microcode_ctl-20260811-1.oe2403sp1.src",
						"openEuler-24.03-LTS-SP3:microcode_ctl-20260811-1.oe2403sp3.src",
						"openEuler-24.03-LTS-SP4:microcode_ctl-20260811-1.oe2403sp4.src",
						"openEuler-20.03-LTS-SP4:microcode_ctl-20260811-1.oe2003sp4.x86_64",
						"openEuler-22.03-LTS-SP4:microcode_ctl-20260811-1.oe2203sp4.x86_64",
						"openEuler-24.03-LTS-SP1:microcode_ctl-20260811-1.oe2403sp1.x86_64",
						"openEuler-24.03-LTS-SP3:microcode_ctl-20260811-1.oe2403sp3.x86_64",
						"openEuler-24.03-LTS-SP4:microcode_ctl-20260811-1.oe2403sp4.x86_64"
					]
				}
			],
			"threats":[
				{
					"details":"Medium",
					"category":"impact"
				}
			],
			"title":"CVE-2026-20917"
		}
	]
}