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Oracle Financial Services Customer Screening EUVDEUVD-2026-24422

| CVE-2026-34320 HIGH
Improper Authorization (CWE-285)
2026-04-21 oracle GHSA-55h4-p6x2-6526
7.5
CVSS 3.1 · Vendor: oracle
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Reach Customer Screening UI over HTTP
  2. Delivery
    Send request bypassing authorization checks
  3. Exploit
    Access protected UI endpoint unauthenticated
  4. Execution
    Read sensitive screening/customer data
  5. Impact
    Exfiltrate confidential records

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Authorization verification
MITRE ATT&CK

1 technique across 1 tactic: Defense Evasion

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Exploitation requires network HTTP reachability to the Oracle Financial Services Customer Screening User Interface component of an instance running version 8.1.2.8.0; per the CVSS vector (AV:N/AC:L/PR:N/UI:N) there are no authentication, user-interaction, or special-configuration prerequisites - remote unauthenticated exploitation is possible against the affected version's exposed UI. Limiting factors: the target must be running the specific affected build 8.1.2.8.0, the User Interface must be network-accessible to the attacker (deployments that isolate the UI behind VPN/internal-only networks are far less exposed), and impact is confined to reading data (no write or denial-of-service via this flaw). No public exploit is currently available, which further limits real-world exploitation.

Impact

The signals are mixed but internally consistent toward 'real but not urgent.' The CVSS 3.1 base score is 7.5 (High) driven purely by confidentiality (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N), meaning trivial remote unauthenticated access with no user interaction - an easy attack if a working technique existed. Countering that, EPSS is only 0.03% (9th percentile), the vulnerability is not in CISA KEV, and the CISA SSVC framework rates Exploitation as 'none' with Technical Impact 'partial' (though Automatable 'yes'). So while the attack barrier is low on paper, there is no evidence of a public exploit or active exploitation. The 'partial' technical impact aligns with confidentiality-only loss rather than full system compromise. Net: this is a legitimate patch-soon issue for organizations running the affected version - especially given the sensitive AML/screening data involved - but not a drop-everything emergency absent exploit code. Note a minor tension worth verifying with the vendor: the description phrases outcomes as 'unauthorized access to critical data or complete access to all... accessible data,' which is broad, while CWE-285/'Authentication Bypass' tags suggest a specific access-control bypass path rather than generic data exposure.

Exploit ScenarioDerived

An attacker who can reach the Customer Screening web interface over HTTP sends crafted requests to the User Interface component that bypass the intended authorization checks, returning sensitive screening/customer data without any login. No user interaction or credentials are required, so the request can be issued directly from any network position with connectivity to the host. No public proof-of-concept was identified at time of analysis, which currently limits practical exploitation.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Jul 24, 2026

Unauthorized data disclosure in Oracle Financial Services Customer Screening 8.1.2.8.0 (User Interface component) allows a remote, unauthenticated attacker with only HTTP network access to read all data accessible to the application. The flaw is an authorization/access-control weakness (CWE-285) that yields high confidentiality impact without any integrity or availability effect. There is no public exploit identified at time of analysis, and the EPSS probability is very low (0.03%, 9th percentile), indicating no observed exploitation activity.

RemediationAI

Apply the fixes from the Oracle April 2026 Critical Patch Update, which is the authoritative source for this CVE; consult https://www.oracle.com/security-alerts/cpuapr2026.html for the exact patch bundle and post-install steps applicable to Oracle Financial Services Customer Screening 8.1.2.8.0 (a specific standalone fix version was not provided in the input, so use the CPU-designated patch - Patch available per vendor advisory). Until the patch is deployed, reduce exposure by restricting network reachability of the Customer Screening User Interface to trusted internal networks or VPN only and placing it behind an authenticating reverse proxy or WAF that enforces access control on UI endpoints, accepting that this may inconvenience legitimate remote operators and requires tuning to avoid blocking valid screening workflows. Because the flaw is unauthenticated (PR:N), network-level access restriction is the most reliable compensating control until patching. Verify no direct internet exposure of the application front end and monitor access logs for anomalous UI requests.

Affected VersionsENISA

Oracle Financial Services Customer Screening 8.1.2.8.0

Affected Packages

euvd oracle_financial_services_customer_screening no fix

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

The affected product is Oracle Financial Services Customer Screening, a sanctions/watchlist and customer-screening module used in AML and financial-crime-compliance stacks; the affected CPE is cpe:2.3:a:oracle_corporation:oracle_financial_services_customer_screening. The root-cause class is CWE-285 (Improper Authorization), meaning the application fails to correctly enforce access-control checks on requests to the User Interface component, so a caller can reach data or functionality that authorization logic should have restricted. The vendor tag 'Authentication Bypass' reinforces that the control being circumvented is the front-end authentication/authorization boundary rather than a memory-safety or injection defect. Because the CVSS vector is C:H/I:N/A:N, the exposure is limited to reading data - the attacker gains visibility into application-accessible records but cannot modify data or disrupt service through this specific weakness.

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Severity by source

Vendor (oracle) PRIMARY 7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
vuln.today AI 7.5 HIGH

Remote unauthenticated HTTP access with no user interaction (AV:N/AC:L/PR:N/UI:N) yielding full read of application data only, so C:H and I/A:N.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (oracle).

CVSS VectorVendor: oracle

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

DescriptionCVE.org

Vulnerability in the Oracle Financial Services Customer Screening product of Oracle Financial Services Applications (component: User Interface). The supported version that is affected is 8.1.2.8.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Financial Services Customer Screening. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Financial Services Customer Screening accessible data. CVSS 3.1 Base Score 7.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

Executive ViewAI

Why It Matters

Oracle Financial Services Customer Screening 8.1.2.8.0 contains an authorization flaw enabling unauthenticated remote attackers to access all application data through the User Interface component. This exposes customer due diligence records, financial data, and screening results to unauthorized disclosure, compromising regulatory compliance and customer trust. Organizations running this product must assume potential data exposure and implement immediate access controls.

Business Impact: High
Compensating Controls

Network segmentation via firewall rules, VPN-only access policies, and IP whitelisting to restrict application connectivity. Implement enhanced monitoring and alerting on the User Interface component for unauthorized access attempts and data queries. Disable or restrict unused data fields in the application configuration if available. Engage Oracle Support immediately for interim application-level access controls and patch timeline confirmation.

Threat Intelligence Overview

EPSS Score
0.0%
Top 91% exploitable
Prevalence
Low
niche enterprise AML/compliance module, industry-specific financial-services deployment
Data Quality
5 sources
Confidence: Medium

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.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.0%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
Yes
Human Impact
High
Technical Impact
Partial

Priority Score

38
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +38
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

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