{"id":"CVE-2021-35587","published":"2022-01-19T12:15:09Z","modified":"2026-06-17T03:57:46Z","title":"Oracle Fusion Middleware Unspecified Vulnerability","vendor":"Oracle","product":"Fusion Middleware","tier":"core","eol":null,"description":{"text":"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).","provenance":"source","from":"NVD"},"summary":{"text":"The flaw lies in the OpenSSO Agent component of Oracle Access Manager, part of Oracle Fusion Middleware. An unauthenticated attacker with network access over HTTP can easily exploit it, with no user interaction required, to take over Oracle Access Manager.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-29T13:43:55Z"},"cvss":{"score":9.8,"severity":"CRITICAL","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.96284,"percentile":0.99878,"date":"2026-10-29","provenance":"source"},"kev":{"dateAdded":"2022-11-28","dueDate":"2022-12-19","ransomware":false,"requiredAction":"Apply updates per vendor instructions.","notes":"https://www.oracle.com/security-alerts/cpujan2022.html; https://nvd.nist.gov/vuln/detail/CVE-2021-35587","provenance":"source"},"vulncheckKev":{"dateAdded":"2022-11-28","exploitedFirstSeen":"2022-11-28","ransomware":false,"evidence":[{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2022-11-28"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-12-01&host_type=src&vulnerability=cve-2021-35587","date":"2023-12-01"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-12-03&host_type=src&vulnerability=cve-2021-35587","date":"2023-12-03"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-12-05&host_type=src&vulnerability=cve-2021-35587","date":"2023-12-05"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-12-11&host_type=src&vulnerability=cve-2021-35587","date":"2023-12-11"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-12-19&host_type=src&vulnerability=cve-2021-35587","date":"2023-12-19"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-12-24&host_type=src&vulnerability=cve-2021-35587","date":"2023-12-24"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-01-01&host_type=src&vulnerability=cve-2021-35587","date":"2024-01-01"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-01-22&host_type=src&vulnerability=cve-2021-35587","date":"2024-01-22"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-01-23&host_type=src&vulnerability=cve-2021-35587","date":"2024-01-23"}],"evidenceTotal":700,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev 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Application","tactics":["initial-access"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Unauthenticated HTTP exploitation of exposed service","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP","start":187,"end":280}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"},{"id":"T1059","name":"Command and Scripting Interpreter","tactics":["execution"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Takeover implies code execution on server","mappingType":"primary_impact","evidence":[{"from":"description","quote":"Successful attacks of this vulnerability can result in takeover of Oracle Access Manager","start":318,"end":406}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[{"id":"SRC-bb4b1195210e6e3b7897","title":"ShinyHunters Calling: Financially Motivated Data Extortion Group Targeting Enterprise Cloud Applications","publisher":"blog.eclecticiq.com","url":"https://blog.eclecticiq.com/shinyhunters-calling-financially-motivated-data-extortion-group-targeting-enterprise-cloud-applications","date":null,"mentions":[{"quote":"According to data obtained from a public Telegram channel operated by the ShinyHunters team, the threat actor persona ‘Yukari’ exploited an Oracle Access Manager vulnerability (CVE-2021-35587).","start":19878,"end":20071}]}],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2021-22223","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2021-22223","exploited":true,"exploitedSince":"2022-11-28","provenance":"source"},"exploits":[],"exploitSources":{"pocGithub":{"count":2,"skipped":0,"earliest":"2022-03-14","earliestUrl":"https://github.com/ZZ-SOCMAP/CVE-2021-35587","repos":[{"name":"ZZ-SOCMAP/CVE-2021-35587","url":"https://github.com/ZZ-SOCMAP/CVE-2021-35587","stars":42,"created":"2022-03-14"},{"name":"Jwa7470/2025-Oracle-SSO-LDAP-Attack-Post-Incident-Written-Report","url":"https://github.com/Jwa7470/2025-Oracle-SSO-LDAP-Attack-Post-Incident-Written-Report","stars":0,"created":"2026-08-28"}]},"metasploit":[{"name":"Oracle Access Manager unauthenticated Remote Code 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