{"cve":{"cve_id":"CVE-2021-35217","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":0.73854,"epss_percentile":0.99409,"epss_as_of":"2026-06-23","description":"Insecure Deseralization of untrusted data remote code execution vulnerability was discovered in Patch Manager Orion Platform Integration module and reported to us by ZDI. An Authenticated Attacker could exploit it by executing WSAsyncExecuteTasks deserialization of untrusted data.","published_at":"2021-09-08T13:15:03.615000Z","last_modified_at":null,"cvss_v3_score":8.9,"cvss_v3_vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L","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":null,"nvd_references":["https://documentation.solarwinds.com/en/success_center/orionplatform/content/core-secure-configuration.htm","https://documentation.solarwinds.com/en/success_center/orionplatform/content/release_notes/orion_platform_2020-2-6_release_notes.htm","https://www.solarwinds.com/trust-center/security-advisories/cve-2021-35217","https://www.zerodayinitiative.com/advisories/ZDI-21-1247/"],"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":"2026-06-28T23:15:50.265257Z"},"effective_severity":"HIGH","badges":["epss"],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"A","value_label":"Adjacent"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"L","value_label":"Low"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"C","value_label":"Changed"},{"metric":"C","name":"Confidentiality","value":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"L","value_label":"Low"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"solarwinds","vendor_name":"SolarWinds","product_slug":"orion-platform","product_name":"Orion Platform","version_start":"2020.2.5 and previous versions","version_start_inclusive":true,"version_end":"2020.2.6","version_end_inclusive":false,"cpe23_uri":"cve5:solarwinds:orion-platform:2020.2.5 and previous versions:2020.2.6"}],"exploit_refs":[],"news":[],"references":[{"url":"https://documentation.solarwinds.com/en/success_center/orionplatform/content/core-secure-configuration.htm","source_type":"MISC","tags":[]},{"url":"https://documentation.solarwinds.com/en/success_center/orionplatform/content/release_notes/orion_platform_2020-2-6_release_notes.htm","source_type":"MISC","tags":[]},{"url":"https://www.solarwinds.com/trust-center/security-advisories/cve-2021-35217","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-21-1247/","source_type":"VENDOR_ADVISORY","tags":["advisory"]}],"timeline":[{"type":"published","at":"2021-09-08T13:15:03.615000Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:18:49.906573Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:18:49.906573Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:18:49.906573Z","label":"CVSS score revised","source":"cvelistv5"}]}