{"id":"CVE-2021-35587","kind":"vulnerability","aliases":["CVE-2021-35587"],"related":[],"title":"Vulnerability in the Oracle Access Manager product of Oracle Fusion Middleware (component: OpenSSO Agent)","description":"Vulnerability in the Oracle Access Manager product of Oracle Fusion Middleware (component: OpenSSO Agent). Supported versions that are affected are 11.1.2.3.0, 12.2.1.3.0 and 12.2.1.4.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Access Manager. Successful attacks of this vulnerability can result in takeover of Oracle Access Manager. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).","summary":"Oracle Fusion Middleware Access Manager has an unspecified flaw that lets an unauthenticated attacker over HTTP take over the product. CISA lists it as actively exploited in the wild.","severity":"critical","cvss":9.8,"epss":null,"exploited":true,"exploited_at":"2022-11-28T00:00:00+00:00","products":[{"name":"Oracle Fusion Middleware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"oracle access manager","fixed":[],"affected":"= 11.1.2.3.0","ecosystem":"vendor"},{"name":"oracle access manager","fixed":[],"affected":"= 12.2.1.3.0","ecosystem":"vendor"},{"name":"oracle access manager","fixed":[],"affected":"= 12.2.1.4.0","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["exploited","oracle-access-manager","oracle-fusion-middleware","self-hosted","vendor"],"not_affected_if":["no-oracle-access-manager"],"how_to_check":"Identify whether Oracle Access Manager is deployed and which version runs; the sources do not give affected version ranges.","fix":"Apply Oracle's security updates for Oracle Fusion Middleware per vendor instructions (CISA required action); the specific patch or version is unknown from the sources.","status":"open","published_at":"2022-01-19T12:15:09+00:00","first_seen_at":"2026-10-23T19:11:52+00:00","triaged_at":"2026-10-23T21:08:58+00:00","updated_at":"2026-10-23T22:29:04+00:00","category":"vendor","confidence":0.6,"triage":{"at":"2026-10-23T21:08:58Z","model":"claude-haiku-5-5","output":{"fix":"Apply Oracle's security updates for Oracle Fusion Middleware per vendor instructions (CISA required action); the specific patch or version is unknown from the sources.","reach":"internet","impact":"high","summary":"Oracle Fusion Middleware Access Manager has an unspecified flaw that lets an unauthenticated attacker over HTTP take over the product. CISA lists it as actively exploited in the wild.","category":"vendor","who_cares":["oracle-fusion-middleware","oracle-access-manager","self-hosted"],"confidence":0.6,"needs_auth":"no","worst_case":"Unauthenticated attacker takes over Access Manager over HTTP","analyst_note":"Find the affected and fixed versions and the Oracle Critical Patch Update advisory for CVE-2021-35587 (CISA KEV entry is the only source here).","how_to_check":"Identify whether Oracle Access Manager is deployed and which version runs; the sources do not give affected version ranges.\nunknown","needs_analyst":true,"not_affected_if":["no-oracle-access-manager"],"user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"critical"},"cost_usd":0.000488,"input_tokens":2796,"output_tokens":416,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2021':16A,19A '-35587':17A,20A '/av':142C '11.1.2.3.0':95C '12.2.1.3.0':96C '12.2.1.4.0':98C '3.1':129C,141C '9.8':132C 'access':5A,25A,28A,31A,36B,49B,79C,107C,113C,126C 'activ':70B 'affect':93C 'agent':14A,88C 'allow':102C 'attack':59B,104C,116C 'avail':136C 'base':130C 'cisa':66B 'compon':12A,86C 'compromis':111C 'confidenti':133C 'cve':15A,18A 'cvss':128C,138C,140C 'easili':99C 'exploit':33B,71B,100C 'flaw':54B 'fusion':10A,22A,40B,47B,84C 'h':150C 'h/a':149C 'h/i':148C 'host':44B 'http':61B,109C 'impact':137C 'integr':134C 'l/pr':144C 'let':56B 'list':67B 'manag':6A,37B,50B,80C,114C,127C 'manager':26A,29A,32A 'middlewar':11A,41B,48B,85C 'middleware':23A 'n/ac':143C 'n/s':146C 'n/ui':145C 'network':106C 'opensso':13A,87C 'oracl':4A,9A,35B,39B,46B,78C,83C,112C,125C 'oracle':21A,24A,27A,30A 'oracle-access-manag':34B 'oracle-fusion-middlewar':38B 'product':7A,65B,81C 'result':121C 'score':131C 'self':43B 'self-host':42B 'success':115C 'support':89C 'take':62B 'takeov':123C 'u/c':147C 'unauthent':58B,103C 'unspecifi':53B 'vector':139C 'vendor':45B 'version':90C 'via':108C 'vulner':1A,75C,101C,119C 'wild':74B","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2022-01-19T12:15:09+00:00","kev":{"dateAdded":"2022-11-28","dueDate":"2022-12-19","requiredAction":"Apply updates per vendor instructions.","knownRansomwareCampaignUse":"Unknown"},"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cvss_by":"secalert_us@oracle.com","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2021-35587","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2021-35587","severity":null,"published_at":"2022-11-28T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:52+00:00","fetched_at":"2026-10-25T20:35:35+00:00","note":null},{"source":"nvd","external_id":"CVE-2021-35587","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-35587","severity":null,"published_at":"2022-01-19T12:15:09+00:00","modified_at":"2026-06-17T03:57:46+00:00","first_seen_at":"2026-10-23T22:29:04+00:00","fetched_at":"2026-10-23T22:29:04+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"}