What is the CVSS score of EUVD-2026-79463?

EUVD-2026-79463 has a CVSS 3.1 base score of 8.7 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N. EPSS exploitation probability: 0.4%.

Oracle EUVD-2026-79463

| CVE-2026-83135 HIGH

Improper Access Control (CWE-284)

2026-09-15 secalert_us@oracle.com

GHSA-4wvf-7qxr-6vrg

Authentication Bypass Oracle

8.7

CVSS 3.1 · Vendor: oracle

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Vulnerability Assessment

Weakness

CWE

CWE-284

OWASP Top 10:2025

A01:2025 - Broken Access Control

ASVS 5.0

V8 - Authorization Access control enforcement

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.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

No patch listed yet 0.4% exploitation probability (EPSS)

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AnalysisAIv1 – Sep 15, 2026

Oracle iStore, the e-commerce/shopping cart module of Oracle E-Business Suite versions 12.2.3 through 12.2.15, is exposed to a cross-site style attack in which a low-privileged authenticated attacker with HTTP network access can induce a second user to interact with crafted content and thereby gain unauthorized read, create, modify, and delete access to iStore data — with the vendor warning the impact can extend to other EBS products. With CVSS 3.1 base 8.7 (AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N), the flaw is trivially automatable once an attacker holds any low-privileged account, but exploitation still hinges on victim interaction, which materially lowers real-world risk. No public proof-of-concept, EPSS estimate, or CISA KEV entry was present in the supplied intelligence, so exploitation is assessed as not confirmed in the wild at time of analysis.

Affected VersionsENISA

Oracle iStore 12.2.3 ≤12.2.15

Affected Packages

euvd oracle_istore 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.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (oracle) PRIMARY 8.7 HIGH

AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

Primary rating from Vendor (oracle) · only source for this CVE.

CVSS VectorVendor: oracle

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

High

Availability

None

DescriptionCVE.org

Vulnerability in the Oracle iStore product of Oracle E-Business Suite (component: Shopping Cart). Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle iStore. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Oracle iStore, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle iStore accessible data as well as unauthorized access to critical data or complete access to all Oracle iStore accessible data. CVSS 3.1 Base Score 8.7 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N).

Threat Intelligence Overview

EPSS Score

0.4%

Top 71% exploitable

Data Quality

4 sources

Confidence: Medium

EUVD

NVD

CVE.org

EPSS

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 0.4%

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.