{"cve":{"cve_id":"CVE-2026-69836","is_kev":true,"kev_date_added":"2026-08-21","kev_vendor_project":"Microsoft","kev_product":"Entra ID ","kev_vulnerability_name":"Microsoft Entra ID Deserialization of Untrusted Data Vulnerability","kev_short_description":"Microsoft Entra ID formerly known as Azure Active Directory contains a deserialization of untrusted data vulnerability which could allow an unauthorized attacker to execute code over a network.","kev_required_action":"Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.","kev_due_date":"2026-08-24","kev_known_ransomware":false,"kev_notes":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69836 ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-69836","kev_cwes":["CWE-502"],"epss_score":0.01555,"epss_percentile":0.73317,"epss_as_of":"2026-08-26","description":"Deserialization of untrusted data in Microsoft Entra ID allows an unauthorized attacker to execute code over a network.","published_at":"2026-08-20T21:43:12.611000Z","last_modified_at":"2026-08-25T16:08:43.290000Z","cvss_v3_score":10.0,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C","cvss_v3_severity":"CRITICAL","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":"active","ssvc_automatable":true,"ssvc_technical_impact":"total","cwes":["CWE-502"],"nvd_references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69836"],"vuln_status":"Analyzed","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":"2026-08-20T23:42:27.513179Z","updated_at":"2026-08-27T23:40:11.369738Z"},"effective_severity":"CRITICAL","badges":["kev","news"],"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":"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":"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":"entra-id","product_name":"entra_id","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cpe:2.3:a:microsoft:entra_id:-:*:*:*:*:*:*:*"},{"vendor_slug":"microsoft","vendor_name":"microsoft","product_slug":"microsoft-entra","product_name":"Microsoft Entra","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cve5:microsoft:microsoft-entra:*:*"}],"exploit_refs":[],"news":[{"id":1327,"source":"The Hacker News","url":"https://thehackernews.com/2026/08/microsoft-entra-id-flaw-cvss-100.html","title":"Microsoft Entra ID Flaw (CVSS 10.0) Exploited in Wild, Allows Remote Code Execution","summary":"Microsoft on Thursday warned of a maximum-severity security flaw in Entra ID that it said has been exploited in the wild, but noted that no customer action is required.\n\nThe vulnerability, tracked as CVE-2026-69836 (CVSS score: 10.0), is a case of remote code execution impacting the tech giant's cloud-based identity and access management service. It was previously called Azure Active Directory","thumbnail_url":"https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEid22xatm4tPGWO1VA9heA8p7i0iK4au3br36QORRasXlUO2uY5836xkZe6gywLOId9oHICopC6jZ8J-di4JI9O3CPOSOGsqoOR4Ps4DrEbKCXSXwMxX_wOGo0fY3zaTW4By4nzbY6jldD58kLAlBYfFxMOEeZOglaQu8R0TtT23Q2jLbQjHwJSoS21pqu5/s1600/entraid.jpg","author":"info@thehackernews.com (The Hacker News)","published_at":"2026-08-21T06:06:11Z","fetched_at":"2026-08-21T06:55:27.931016Z","trending_score":0.13743902570040686,"cve_ids":["CVE-2026-69836"]}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69836","source_type":"VENDOR_ADVISORY","tags":["advisory"]}],"timeline":[{"type":"published","at":"2026-08-20T21:43:12.611000Z","label":"CVE published","source":null},{"type":"cisa_reported","at":"2026-08-21T00:00:00Z","label":"Added to CISA KEV catalog","source":"kev"},{"type":"first_article","at":"2026-08-21T06:06:11Z","label":"First news coverage","source":"The Hacker News"},{"type":"ssvc_changed","at":"2026-08-21T16:43:27.522369Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-08-21T16:43:27.522369Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-08-21T16:43:27.522369Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-08-27T23:40:11.369738Z","label":"SSVC decision revised","source":"vulnrichment"}]}