{"cve":{"cve_id":"CVE-2026-69414","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":0.01319,"epss_percentile":0.70305,"epss_as_of":"2026-10-15","description":"Microsoft is aware of an elevation of privilege in the Microsoft Malware Protection Engine in Microsoft Defender publicly referred to as "ShieldBreak ".","published_at":"2026-08-14T21:50:58.641000Z","last_modified_at":"2026-09-03T22:18:19.793000Z","cvss_v3_score":7.8,"cvss_v3_vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/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":"poc","ssvc_automatable":false,"ssvc_technical_impact":"total","cwes":["CWE-284","CWE-269"],"nvd_references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69414"],"vuln_status":"Modified","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":"2026-08-14T22:37:17.701083Z","updated_at":"2026-09-04T03:34:00.383214Z"},"effective_severity":"HIGH","badges":["news"],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"L","value_label":"Local"},{"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":"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":"P","value_label":"Physical"},{"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":"malware-protection-engine","product_name":"malware_protection_engine","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cpe:2.3:a:microsoft:malware_protection_engine:-:*:*:*:*:*:*:*"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"microsoft-malware-protection-engine","product_name":"Microsoft Malware Protection Engine","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cve5:microsoft:microsoft-malware-protection-engine:*:*"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"microsoft-malware-protection-engine","product_name":"Microsoft Malware Protection Engine","version_start":"1.1.0.0","version_start_inclusive":true,"version_end":"1.1.26080.3","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:microsoft-malware-protection-engine:1.1.0.0:1.1.26080.3"}],"exploit_refs":[],"news":[{"id":1773,"source":"The Hacker News","url":"https://thehackernews.com/2026/09/researcher-drops-new-microsoft-defender.html","title":"Researcher Drops New Microsoft Defender PoC Showing ShieldBreak Patch Can Be Bypassed","summary":"The security researcher known as Chaotic Eclipse has dropped a proof-of-concept (PoC) for yet another zero-day in Microsoft Defender.\n\nThe vulnerability, codenamed ShieldCrash, is assessed to be a patch bypass for CVE-2026-69414 (CVSS score: 7.8), also called ShieldBreak, which the researcher reported last month.\n\n\"Microsoft has failed to properly patch ShieldBreak CVE-2026-69414,\" Chaotic","thumbnail_url":"https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiZtPq88H-iuD1vEn_DT-1UgFvWXy-P5eKMUm280xVsPt3_Dja1q22icfvF49OduVCGmazXmVmi51Oj58t-2H6JMA4e89X_-obRVRVORjeAZoQzNnw3Io6ad_LofQ1kfum9XeiHC9cijCgAiRL-RsRYjECDVPD_ZT3w61CFj1lkwe2sSZ_1_eSn6Oruh9MJ/s1600/windows-poc.jpg","author":"info@thehackernews.com (The Hacker News)","published_at":"2026-09-09T06:47:27Z","fetched_at":"2026-09-09T09:20:54.573224Z","trending_score":8.652069157103622e-8,"cve_ids":["CVE-2026-69414"]},{"id":1209,"source":"BleepingComputer","url":"https://www.bleepingcomputer.com/news/security/microsoft-working-on-defender-patch-for-shieldbreak-zero-day/","title":"Microsoft working on Defender patch for ShieldBreak zero-day","summary":"Microsoft is working on a security patch for the \"ShieldBreak\" zero-day vulnerability disclosed last week by security researcher \"Nightmare Eclipse\" and now tracked as CVE-2026-69414. [...]","thumbnail_url":null,"author":"Sergiu Gatlan","published_at":"2026-08-17T09:05:33Z","fetched_at":"2026-08-17T09:37:44.689801Z","trending_score":3.345584047507804e-11,"cve_ids":["CVE-2026-69414"]}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69414","source_type":"VENDOR_ADVISORY","tags":["advisory"]}],"timeline":[{"type":"published","at":"2026-08-14T21:50:58.641000Z","label":"CVE published","source":null},{"type":"first_article","at":"2026-08-17T09:05:33Z","label":"First news coverage","source":"BleepingComputer"},{"type":"ssvc_changed","at":"2026-08-18T14:40:44.496072Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-08-18T14:40:44.496072Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-08-18T14:40:44.496072Z","label":"SSVC decision revised","source":"vulnrichment"}]}