{"id":"CVE-2026-91365","kind":"vulnerability","aliases":["CVE-2026-91365"],"related":[],"title":"Oracle Siebel CRM Cloud: Cloud Manager flaw exposes data to adjacent-network attackers","description":"Vulnerability in the Siebel CRM Cloud Applications product of Oracle Siebel CRM (component: Siebel Cloud Manager).  Supported versions that are affected are 22.3-26.9. Difficult to exploit vulnerability allows unauthenticated attacker with access to the physical communication segment attached to the hardware where the Siebel CRM Cloud Applications executes to compromise Siebel CRM Cloud Applications.  Successful attacks of this vulnerability can result in  unauthorized access to critical data or complete access to all Siebel CRM Cloud Applications accessible data as well as  unauthorized update, insert or delete access to some of Siebel CRM Cloud Applications accessible data. CVSS 3.1 Base Score 5.9 (Confidentiality and Integrity impacts).  CVSS Vector: (CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N).","summary":"Oracle Siebel CRM Cloud Applications, component Siebel Cloud Manager, has a flaw in versions 22.3 through 26.9. An unauthenticated attacker on the physical network segment shared with the hardware can read critical data and modify or delete some accessible data.","severity":"medium","cvss":5.9,"epss":0.00176,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["cloud-manager","oracle","siebel-crm","vendor"],"not_affected_if":["no-adjacent-network-access","not-siebel-cloud"],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-10-20T22:20:39+00:00","first_seen_at":"2026-10-23T21:57:26+00:00","triaged_at":"2026-10-25T04:08:09+00:00","updated_at":"2026-10-25T12:38:52+00:00","category":"vendor","confidence":0.55,"triage":{"at":"2026-10-25T04:08:09Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"network","title":"Oracle Siebel CRM Cloud: Cloud Manager flaw exposes data to adjacent-network attackers","impact":"high","summary":"Oracle Siebel CRM Cloud Applications, component Siebel Cloud Manager, has a flaw in versions 22.3 through 26.9. An unauthenticated attacker on the physical network segment shared with the hardware can read critical data and modify or delete some accessible data.","category":"vendor","nicknames":[],"who_cares":["siebel-crm","oracle","cloud-manager"],"confidence":0.55,"needs_auth":"no","worst_case":"Attacker on the same physical network reads critical CRM data and alters some records","analyst_note":"Check Oracle's Critical Patch Update advisory for the Siebel CRM Cloud Applications fix version and any check steps, since the NVD entry gives neither.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":["not-siebel-cloud","no-adjacent-network-access"],"who_is_affected":"The sources describe an attacker with access to the physical communication segment attached to the hardware running Siebel CRM Cloud Applications, so exposure is limited to that adjacent network. Teams using Oracle-hosted Siebel cloud services should check Oracle's advisory for what applies to them. Teams not running Siebel CRM Cloud Applications can skip it.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000622,"input_tokens":3558,"output_tokens":532,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-2026':16A,19A '-26.9':92C '-91365':17A,20A '/av':179C '22.3':43B,91C '26.9':45B '3.1':167C,178C '5.9':170C 'a/ac':180C 'access':67B,101C,133C,139C,146C,156C,164C 'adjac':12A 'adjacent-network':11A 'affect':89C 'allow':97C 'applic':33B,75C,116C,123C,145C,163C 'attach':107C 'attack':14A,48B,99C,125C 'base':168C 'cloud':4A,5A,22B,32B,36B,74C,83C,115C,122C,144C,162C 'cloud-manag':21B 'communic':105C 'complet':138C 'compon':34B,81C 'compromis':119C 'confidenti':171C 'critic':60B,135C 'crm':3A,27B,31B,73C,80C,114C,121C,143C,161C 'cve':15A,18A 'cvss':166C,175C,177C 'data':9A,61B,68B,136C,147C,165C 'delet':65B,155C 'difficult':93C 'execut':117C 'exploit':95C 'expos':8A 'flaw':7A,40B 'h/i':185C 'h/pr':181C 'hardwar':57B,110C 'impact':174C 'insert':153C 'integr':173C 'l/a':186C 'manag':6A,23B,37B,84C 'modifi':63B 'n':187C 'n/s':183C 'n/ui':182C 'network':13A,52B 'oracl':1A,24B,29B,78C 'physic':51B,104C 'product':76C 'read':59B 'result':130C 'score':169C 'segment':53B,106C 'share':54B 'siebel':2A,26B,30B,35B,72C,79C,82C,113C,120C,142C,160C 'siebel-crm':25B 'success':124C 'support':85C 'u/c':184C 'unauthent':47B,98C 'unauthor':132C,151C 'updat':152C 'vector':176C 'vendor':28B 'version':42B,86C 'vulner':69C,96C,128C 'well':149C","nicknames":[],"mitigations":[],"who_affected":"The sources describe an attacker with access to the physical communication segment attached to the hardware running Siebel CRM Cloud Applications, so exposure is limited to that adjacent network. Teams using Oracle-hosted Siebel cloud services should check Oracle's advisory for what applies to them. Teams not running Siebel CRM Cloud Applications can skip it.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:20:39+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N","cvss_by":"secalert_us@oracle.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-91365","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-91365","severity":null,"published_at":"2026-10-20T22:20:39+00:00","modified_at":"2026-10-21T18:45:11+00:00","first_seen_at":"2026-10-23T21:57:26+00:00","fetched_at":"2026-10-23T22:29:00+00:00","note":null},{"source":"epss","external_id":"CVE-2026-91365","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-91365","severity":null,"published_at":null,"modified_at":null,"first_seen_at":"2026-10-25T12:38:52+00:00","fetched_at":"2026-10-25T12:38:52+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}