Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessObtain local logon to host infrastructure
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DeliveryPlace crafted malicious document in accessible location
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ExploitInduce victim user to trigger Outside In file processing
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ExecutionOutside In Core parses malformed document
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ImpactExploit succeeds, achieves full system takeover
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V14 - Data Protection Data exposure prevention
MITRE ATT&CK
2 techniques across 2 tactics: Collection, Discovery The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | The attacker must already possess logon access to the infrastructure host where Oracle Outside In Technology 8.5.8 executes - this is a local attack (AV:L), not a remote network attack. No privileges within the application itself are required (PR:N in CVSS), meaning any user capable of logging onto the system qualifies as a potential attacker. Human interaction from a person other than the attacker is a mandatory prerequisite (UI:R): a separate user must trigger the document processing action, such as opening or submitting a file to the Outside In pipeline. Exploitation is therefore limited by the combination of required local infrastructure access and dependency on victim interaction - it cannot be triggered remotely or in a fully automated, unattended manner. The vulnerability is only confirmed in version 8.5.8; other versions are not in scope per available data. |
| Impact | The CVSS 3.1 score of 7.8 (High) is driven by the full C:H/I:H/A:H impact triad, reflecting complete system takeover potential. However, the attack vector AV:L significantly constrains the threat surface relative to a network-exploitable vulnerability - only actors with existing logon access to the infrastructure can stage an attack. The mandatory UI:R (user interaction required) further limits automated or mass exploitation, preventing worm-like spread. No EPSS data was provided, and the vulnerability is not currently listed in the CISA KEV catalog, meaning active exploitation has not been confirmed by authoritative sources. The combination of local access and required human interaction means that even a mid-sized municipal IT team in sanok should treat this as urgent primarily in environments where Oracle Fusion Middleware processes documents ingested from untrusted external sources or shared network locations. The real-world risk is highest in document-processing pipelines where external files are automatically queued for Outside In parsing. There is no known POC; absent KEV listing and EPSS data, the exploit development barrier is currently unquantified. |
| Exploit ScenarioDerived | An attacker with local logon access to a server running Oracle Outside In Technology 8.5.8 places a specially crafted malicious document in a directory monitored or accessible by the Outside In processing pipeline. When a legitimate user or automated workflow triggers document processing - such as opening, indexing, or converting the file - the Outside In Core parsing engine processes the malformed content, triggering the vulnerability and granting the attacker full control over the affected system. No public exploit code has been identified at time of analysis, so this scenario currently requires custom exploit development. |
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Alert meAnalysisAIv1 – Aug 18, 2026
Oracle Outside In Technology 8.5.8 is susceptible to a local exploitation path that results in complete system takeover, affecting all three security pillars - confidentiality, integrity, and availability. The attack requires an unauthenticated adversary with logon access to the host infrastructure and human interaction from a separate user to trigger the vulnerable code path, placing this in the category of local privilege-escalation or malicious-file-processing attacks. No public exploit has been identified at time of analysis, but the severity of the impact (full takeover) and low attack complexity warrant prioritized patching per the Oracle CPU August 2026 advisory.
RemediationAI
Apply the Oracle Critical Patch Update (CPU) for August 2026, published at https://www.oracle.com/security-alerts/cspuaug2026.html. Oracle has not specified an exact patched release version number in the available data - consult the advisory directly to confirm the target upgrade version for Outside In Technology. As interim compensating controls, restrict logon access to infrastructure hosts running Oracle Outside In Technology to the minimum necessary set of users and service accounts, reducing the pool of potential attackers. Additionally, audit and harden document ingestion pipelines to ensure that only content from trusted, vetted sources is processed by Outside In Core, and consider sandboxing or containerizing the parsing component to limit blast radius if exploitation occurs. These controls carry operational trade-offs: restricting logon access may impact legitimate administrative workflows, and pipeline sandboxing may introduce latency or compatibility constraints.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
Oracle Outside In Technology is a file content access and parsing SDK embedded within Oracle Fusion Middleware, widely used to extract and render content from diverse document formats including Office, PDF, and legacy file types. The affected component, Outside In Core, is the central parsing engine responsible for decoding file structures. The vulnerability exists specifically in version 8.5.8. Oracle has not disclosed a CWE identifier (listed as N/A), meaning the precise root cause class - whether memory corruption, integer overflow, or another class - is not confirmed from available data. The CVSS vector AV:L/PR:N/UI:R indicates the attack is local to the host, requires no prior privileges from the attacker, but depends on a human user triggering a processing action, a pattern consistent with malicious document parsing vulnerabilities where a crafted file is processed by the SDK on behalf of an unsuspecting user.
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Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Local attack vector confirmed by description; no application privileges required but mandatory user interaction; full C/I/A impact reflects complete takeover; scope unchanged.
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
DescriptionCVE.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).
Zero Day Initiative Advisories
Executive ViewAI
Oracle Outside In Technology 8.5.8 contains a critical local privilege-escalation vulnerability enabling complete system compromise, with no vendor patch currently available. Organizations running this component face immediate risk to data confidentiality, system integrity, and operational availability, requiring urgent mitigation planning in the absence of remediation options.
No vendor-released patch identified at time of analysis. Interim mitigations: (1) enforce OS-level logon access restrictions limiting host access to essential users, (2) disable or isolate file-processing functionality if business operations permit, (3) deploy file-integrity monitoring on affected systems to detect unauthorized modifications, (4) implement enhanced logging and real-time alerting on file-processing events and authorization failures, (5) segment affected systems from external network entry points where feasible.
Threat Intelligence Overview
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.
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EUVD-2026-61387
GHSA-2c93-25jh-3wvq
NVD
CVE.org
EPSS
VulDB
Exploit-DB