EUVD-2026-61398
GHSA-wvwm-7qqm-r7hc
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Unauthenticated, network-reachable T3/IIOP exploitation with low complexity and no interaction yields full server takeover, so AV:N/AC:L/PR:N/UI:N and C:H/I:H/A:H.
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
Lifecycle Timeline
2DescriptionCVE.org
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0 and 15.1.1.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via T3, IIOP to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. 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 remote takeover in Oracle WebLogic Server (Fusion Middleware Core) lets a network attacker fully compromise the server via the T3 and IIOP protocols with no credentials and no user interaction. Affected supported releases are 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, and 15.1.1.0.0, and Oracle rates it CVSS 9.8 with full confidentiality, integrity, and availability loss. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The one hard prerequisite is network reachability of WebLogic's T3 or IIOP protocol endpoint (default T3 on the WebLogic listen port such as 7001, plus IIOP where enabled) from the attacker's position - the CVSS vector is AV:N/AC:L/PR:N/UI:N, so against a default configuration exposing T3/IIOP there are no authentication, privilege, user-interaction, or special feature-flag requirements. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Every objective signal points to maximum priority: the CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N) describes a network-reachable, low-complexity, unauthenticated, no-interaction attack, and the impact is total (C:H/I:H/A:H, 'takeover'). … 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 fixes from the Oracle Critical Patch Update referenced at https://www.oracle.com/security-alerts/cspuaug2026.html for your specific WebLogic release (12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, or 15.1.1.0.0); an exact patched build number is not enumerated in this feed, so use the CPU advisory's version matrix - Patch available per vendor advisory. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Oracle WebLogic instances running versions 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, or 15.1.1.0.0; assess which are internet-facing or externally reachable; and isolate exposed instances using firewall rules blocking inbound T3 (ports 7002-7003) and IIOP (port 7001) traffic. …
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