EUVD-2026-61385
GHSA-x347-x2cw-vgqm
Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AV:L confirmed by 'logon to infrastructure' requirement; PR:N because no system privileges needed beyond local access; UI:R reflects mandatory victim file interaction; C/I/A:H consistent with full process takeover.
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
Lifecycle Timeline
2DescriptionCVE.org
Vulnerability in the Oracle Outside In Technology product of Oracle Fusion Middleware (component: Outside In Core). The supported version that is affected is 8.5.8. Easily exploitable vulnerability allows unauthenticated attacker with logon to the infrastructure where Oracle Outside In Technology executes to compromise Oracle Outside In Technology. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in takeover of Oracle Outside In Technology. CVSS 3.1 Base Score 7.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
AnalysisAI
Full takeover of Oracle Outside In Technology 8.5.8 is achievable by a local attacker who can position a malicious file for processing by an authorized user on the same host, exploiting a low-complexity flaw in the Outside In Core parsing engine. The vulnerability affects Oracle Fusion Middleware deployments running OIT 8.5.8 and yields complete compromise of confidentiality, integrity, and availability upon successful exploitation. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the attacker to hold a local logon account on the infrastructure host where Oracle Outside In Technology 8.5.8 is installed - the CVSS vector AV:L explicitly excludes remote network-based exploitation. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.8 score reflects a real but gated threat: the local attack vector (AV:L) is the most significant limiting factor, confining exploitation to actors who already hold logon credentials on the host running OIT 8.5.8, which eliminates the vast majority of remote opportunistic attackers. … 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 | The primary fix is to apply Oracle's Critical Patch Update for August 2026, which addresses this vulnerability in Oracle Outside In Technology 8.5.8; the advisory is available at https://www.oracle.com/security-alerts/cspuaug2026.html. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Identify all systems running Oracle Outside In Technology 8.5.8 and restrict file processing capabilities exclusively to administrative users through application-level access controls. …
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External POC / Exploit Code
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