EUVD-2026-79519
GHSA-2q2m-g9vr-6rgh
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Unauthenticated, low-complexity T3/IIOP network vector yielding full OAM takeover justifies AV:N/AC:L/PR:N/UI:N and C:H/I:H/A:H, consistent with Oracle's rating.
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
Lifecycle Timeline
3DescriptionCVE.org
Vulnerability in the Oracle Access Manager product of Oracle Fusion Middleware (component: Authentication Engine). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.1.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via T3, IIOP 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).
AnalysisAI
Unauthenticated network attackers who can reach the T3 or IIOP listener fronting Oracle Access Manager's Authentication Engine on versions 12.2.1.4.0 or 14.1.2.1.0 can bypass authentication and take full control of the component, yielding complete loss of confidentiality, integrity, and availability (CVSS 3.1 base 9.8, vector AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H). No credentials or user interaction are required; the only meaningful precondition is that the T3/IIOP protocols are reachable from the attacker's position, so deployments that restrict those protocols to trusted internal networks are not externally exploitable. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires network access to the Oracle WebLogic T3 or IIOP listener fronting the Oracle Access Manager Authentication Engine on affected versions 12.2.1.4.0 or 14.1.2.1.0; no credentials and no user interaction are needed (PR:N/UI:N). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a genuinely high-priority vulnerability. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Apply the Oracle Critical Patch Update / Security Alert fix referenced at https://www.oracle.com/security-alerts/cspusep2026.html, which covers Oracle Access Manager 12.2.1.4.0 and 14.1.2.1.0; the provided data does not specify an exact patched build number, so confirm the fixed release against the live advisory before upgrading and treat this as "patch available per vendor advisory." Until the patch is applied, the single most effective compensating control is to prevent untrusted networks from reaching the T3 and IIOP listeners: disable IIOP if it is not required (WebLogic console, Environment > Servers > Protocols > IIOP, or by removing the IIOP protocol from the server configuration) and restrict T3 by enabling a connection filter (weblogic.security.net.ConnectionFilterImpl) that permits only trusted administrative subnets, plus host/network firewalling of the WebLogic listen port. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory every Oracle Access Manager instance and confirm which run the affected versions 12.2.1.4.0 or 14.1.2.1.0; for each, determine whether the T3 and IIOP listener ports are reachable from untrusted networks, and where they are, block them at the perimeter and host firewalls or isolate the servers into a trusted management segment - this is the single most effective step since exploitation requires network reachability to those protocols. …
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External POC / Exploit Code
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