{"cve":{"cve_id":"CVE-2025-21222","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.01167,"epss_percentile":0.63269,"epss_as_of":"2026-06-23","description":"Heap-based buffer overflow in Windows Telephony Service allows an unauthorized attacker to execute code over a network.","published_at":"2025-04-08T17:23:39.905000Z","last_modified_at":null,"cvss_v3_score":8.8,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","cvss_v3_severity":"HIGH","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-122"],"nvd_references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21222"],"vuln_status":null,"trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:39.878444Z","updated_at":"2026-06-28T23:25:39.589882Z"},"effective_severity":"HIGH","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"R","value_label":"Required"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"H","value_label":"High"},{"metric":"E","name":"E","value":"U","value_label":"Unchanged"},{"metric":"RL","name":"RL","value":"O","value_label":"O"},{"metric":"RC","name":"RC","value":"C","value_label":"Changed"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"windows-10-version-1507","product_name":"Windows 10 Version 1507","version_start":"10.0.10240.0","version_start_inclusive":true,"version_end":"10.0.10240.20978","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:windows-10-version-1507:10.0.10240.0:10.0.10240.20978"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"windows-10-version-1607","product_name":"Windows 10 Version 1607","version_start":"10.0.14393.0","version_start_inclusive":true,"version_end":"10.0.14393.7969","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:windows-10-version-1607:10.0.14393.0:10.0.14393.7969"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"windows-10-version-1809","product_name":"Windows 10 Version 1809","version_start":"10.0.17763.0","version_start_inclusive":true,"version_end":"10.0.17763.7136","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:windows-10-version-1809:10.0.17763.0:10.0.17763.7136"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"windows-10-version-21h2","product_name":"Windows 10 Version 21H2","version_start":"10.0.19044.0","version_start_inclusive":true,"version_end":"10.0.19044.5737","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:windows-10-version-21h2:10.0.19044.0:10.0.19044.5737"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"windows-10-version-22h2","product_name":"Windows 10 Version 22H2","version_start":"10.0.19045.0","version_start_inclusive":true,"version_end":"10.0.19045.5737","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:windows-10-version-22h2:10.0.19045.0:10.0.19045.5737"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"windows-11-version-22h2","product_name":"Windows 11 version 22H2","version_start":"10.0.22621.0","version_start_inclusive":true,"version_end":"10.0.22621.5189","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:windows-11-version-22h2:10.0.22621.0:10.0.22621.5189"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"windows-11-version-22h3","product_name":"Windows 11 version 22H3","version_start":"10.0.22631.0","version_start_inclusive":true,"version_end":"10.0.22631.5189","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:windows-11-version-22h3:10.0.22631.0:10.0.22631.5189"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"windows-11-version-23h2","product_name":"Windows 11 version 23H2","version_start":"10.0.22631.0","version_start_inclusive":true,"version_end":"10.0.22631.5189","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:windows-11-version-23h2:10.0.22631.0:10.0.22631.5189"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"windows-11-version-24h2","product_name":"Windows 11 Version 24H2","version_start":"10.0.26100.0","version_start_inclusive":true,"version_end":"10.0.26100.3775","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:windows-11-version-24h2:10.0.26100.0:10.0.26100.3775"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"windows-server-2008-r2-service-pack-1","product_name":"Windows Server 2008 R2 Service Pack 1","version_start":"6.1.7601.0","version_start_inclusive":true,"version_end":"6.1.7601.27670","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:windows-server-2008-r2-service-pack-1:6.1.7601.0:6.1.7601.27670"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"windows-server-2008-r2-service-pack-1-server-core-installation","product_name":"Windows Server 2008 R2 Service Pack 1 (Server Core installation)","version_start":"6.1.7601.0","version_start_inclusive":true,"version_end":"6.1.7601.27670","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:windows-server-2008-r2-service-pack-1-server-core-installation:6.1.7601.0:6.1.7601.27670"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"windows-server-2008-service-pack-2","product_name":"Windows Server 2008 Service Pack 2","version_start":"6.0.6003.0","version_start_inclusive":true,"version_end":"6.0.6003.23220","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:windows-server-2008-service-pack-2:6.0.6003.0:6.0.6003.23220"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"windows-server-2008-service-pack-2-server-core-installation","product_name":"Windows Server 2008 Service Pack 2 (Server Core installation)","version_start":"6.0.6003.0","version_start_inclusive":true,"version_end":"6.0.6003.23220","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:windows-server-2008-service-pack-2-server-core-installation:6.0.6003.0:6.0.6003.23220"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"windows-server-2012","product_name":"Windows Server 2012","version_start":"6.2.9200.0","version_start_inclusive":true,"version_end":"6.2.9200.25423","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:windows-server-2012:6.2.9200.0:6.2.9200.25423"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"windows-server-2012-r2","product_name":"Windows Server 2012 R2","version_start":"6.3.9600.0","version_start_inclusive":true,"version_end":"6.3.9600.22523","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:windows-server-2012-r2:6.3.9600.0:6.3.9600.22523"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"windows-server-2012-r2-server-core-installation","product_name":"Windows Server 2012 R2 (Server Core installation)","version_start":"6.3.9600.0","version_start_inclusive":true,"version_end":"6.3.9600.22523","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:windows-server-2012-r2-server-core-installation:6.3.9600.0:6.3.9600.22523"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"windows-server-2012-server-core-installation","product_name":"Windows Server 2012 (Server Core installation)","version_start":"6.2.9200.0","version_start_inclusive":true,"version_end":"6.2.9200.25423","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:windows-server-2012-server-core-installation:6.2.9200.0:6.2.9200.25423"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"windows-server-2016","product_name":"Windows Server 2016","version_start":"10.0.14393.0","version_start_inclusive":true,"version_end":"10.0.14393.7969","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:windows-server-2016:10.0.14393.0:10.0.14393.7969"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"windows-server-2016-server-core-installation","product_name":"Windows Server 2016 (Server Core installation)","version_start":"10.0.14393.0","version_start_inclusive":true,"version_end":"10.0.14393.7969","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:windows-server-2016-server-core-installation:10.0.14393.0:10.0.14393.7969"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"windows-server-2019","product_name":"Windows Server 2019","version_start":"10.0.17763.0","version_start_inclusive":true,"version_end":"10.0.17763.7136","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:windows-server-2019:10.0.17763.0:10.0.17763.7136"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"windows-server-2019-server-core-installation","product_name":"Windows Server 2019 (Server Core installation)","version_start":"10.0.17763.0","version_start_inclusive":true,"version_end":"10.0.17763.7136","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:windows-server-2019-server-core-installation:10.0.17763.0:10.0.17763.7136"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"windows-server-2022","product_name":"Windows Server 2022","version_start":"10.0.20348.0","version_start_inclusive":true,"version_end":"10.0.20348.3453","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:windows-server-2022:10.0.20348.0:10.0.20348.3453"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"windows-server-2022-23h2-edition-server-core-installation","product_name":"Windows Server 2022, 23H2 Edition (Server Core installation)","version_start":"10.0.25398.0","version_start_inclusive":true,"version_end":"10.0.25398.1551","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:windows-server-2022-23h2-edition-server-core-installation:10.0.25398.0:10.0.25398.1551"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"windows-server-2025","product_name":"Windows Server 2025","version_start":"10.0.26100.0","version_start_inclusive":true,"version_end":"10.0.26100.3775","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:windows-server-2025:10.0.26100.0:10.0.26100.3775"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"windows-server-2025-server-core-installation","product_name":"Windows Server 2025 (Server Core installation)","version_start":"10.0.26100.0","version_start_inclusive":true,"version_end":"10.0.26100.3775","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:windows-server-2025-server-core-installation:10.0.26100.0:10.0.26100.3775"}],"exploit_refs":[],"news":[],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21222","source_type":"VENDOR_ADVISORY","tags":["advisory"]}],"timeline":[{"type":"published","at":"2025-04-08T17:23:39.905000Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:42:56.358585Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:42:56.358585Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:42:56.358585Z","label":"CVSS score revised","source":"cvelistv5"}]}