{"cve":{"cve_id":"CVE-2026-87668","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":0.0039,"epss_percentile":0.31495,"epss_as_of":"2026-10-15","description":"A stack-based buffer overflow vulnerability exists in the diagnostic execution utility of Brocade Fabric OS versions before 10.0.1. When processing command arguments for diagnostic operations, the utility tokenizes user-supplied input into an internal argument array without enforcing boundary checks on the maximum array capacity. An authenticated user with administrative access can exploit this vulnerability by supplying a crafted diagnostic command string containing an excessive number of tokenized arguments. This leads to a memory overwrite resulting in a denial of service (process crash).","published_at":"2026-10-08T03:00:54.306000Z","last_modified_at":"2026-10-13T17:23:22.300000Z","cvss_v3_score":6.5,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H","cvss_v3_severity":"MEDIUM","cvss_v4_score":6.9,"cvss_v4_vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N","cvss_v4_severity":"MEDIUM","ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-121"],"nvd_references":["https://support.broadcom.com/external/content/SecurityAdvisories/0/39152"],"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":"2026-10-08T07:37:29.208922Z","updated_at":"2026-10-15T05:15:06.890595Z"},"effective_severity":"MEDIUM","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":"H","value_label":"High"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"N","value_label":"None"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":"4.0","metrics":[{"metric":"AV","name":"Attack Vector","value":"A","value_label":"Adjacent"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"AT","name":"Attack Requirements","value":"N","value_label":"None"},{"metric":"PR","name":"Privileges Required","value":"H","value_label":"High"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"VC","name":"Confidentiality (Vulnerable System)","value":"N","value_label":"None"},{"metric":"VI","name":"Integrity (Vulnerable System)","value":"L","value_label":"Low"},{"metric":"VA","name":"Availability (Vulnerable System)","value":"H","value_label":"High"},{"metric":"SC","name":"Confidentiality (Subsequent System)","value":"N","value_label":"None"},{"metric":"SI","name":"Integrity (Subsequent System)","value":"N","value_label":"None"},{"metric":"SA","name":"Availability (Subsequent System)","value":"N","value_label":"None"}]},"affected":[{"vendor_slug":"broadcom","vendor_name":"Broadcom","product_slug":"fabric-operating-system","product_name":"fabric_operating_system","version_start":null,"version_start_inclusive":null,"version_end":"10.0.1","version_end_inclusive":false,"cpe23_uri":"cpe:2.3:o:broadcom:fabric_operating_system:*:*:*:*:*:*:*:*"},{"vendor_slug":"brocade","vendor_name":"Brocade","product_slug":"fabric-os","product_name":"Fabric OS","version_start":"0","version_start_inclusive":true,"version_end":"10.0.1","version_end_inclusive":false,"cpe23_uri":"cve5:brocade:fabric-os:0:10.0.1"}],"exploit_refs":[],"news":[],"references":[{"url":"https://support.broadcom.com/external/content/SecurityAdvisories/0/39152","source_type":"VENDOR_ADVISORY","tags":["advisory"]}],"timeline":[{"type":"published","at":"2026-10-08T03:00:54.306000Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-10-15T05:15:06.890595Z","label":"CVSS score revised","source":"nvd"},{"type":"cvss_changed","at":"2026-10-15T05:15:06.890595Z","label":"CVSS score revised","source":"nvd"},{"type":"cvss_changed","at":"2026-10-15T05:15:06.890595Z","label":"CVSS score revised","source":"nvd"}]}