IRONSMITHINTEL
CRITICALCVSS9.8
|
Actively Exploited
|CISA KEV|CVE-2021-35587|Auth: none — unauthenticated|Reboot: required|Manual only

Oracle Fusion Middleware Unspecified Vulnerability

Oracle Fusion Middleware Access Manager allows an unauthenticated attacker with network access via HTTP to takeover the Access Manager product.

Published Jan 19, 2022 · Updated May 16, 2026
Why patchRisk explained in plain English
Worst-case scenarioIf unpatched

A remote attacker, without authentication, can achieve full data confidentiality loss, arbitrary modification of data, complete denial of service or system unavailability. Federal agencies are required to remediate by 2022-12-19 under CISA BOD 22-01.

How the attack worksNo clicks needed

This is a Missing Authentication for Critical Function (CWE-306) vulnerability in Oracle Fusion Middleware. 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). Exploitation requires remote network access, low attack complexity, no authentication required, and no user interaction required.

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Phishing link

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Malicious file

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Server compromised

Am I affected?Quick check

Probably yes if any of these apply:

IT Security
Running access manager: 11.1.2.3.0, 12.2.1.3.0, 12.2.1.4.0
Real-world incidentsWhat we've seen

CISA added this CVE to the Known Exploited Vulnerabilities catalog on 2022-11-28 based on evidence of active exploitation in the wild. Federal agencies required to remediate by 2022-12-19.

How to patch

Manual remediation steps

Apply the Vendor Patch

This vulnerability is in the CISA Known Exploited Vulnerabilities catalog — apply the vendor's security update as soon as possible.

CISA required action: Apply updates per vendor instructions.

References

    1
    Vendor advisory: https://www.oracle.com/security-alerts/cpujan2022.html
    1
    NVD entry: https://nvd.nist.gov/vuln/detail/CVE-2021-35587
    1
    CISA KEV: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-35587
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