What is the CVSS score of CVE-2026-83309?

CVE-2026-83309 has a CVSS 3.1 base score of 8.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N. EPSS exploitation probability: 0.3%.

Oracle CVE-2026-83309

EUVD-2026-79661 HIGH

Improper Access Control (CWE-284)

2026-09-15 secalert_us@oracle.com

GHSA-j9x3-qw2w-gjx4

Authentication Bypass Oracle

8.5

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 0.3% exploitation probability (EPSS)

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AnalysisAIv1 – Sep 15, 2026

Oracle BI Publisher (an Oracle Analytics reporting component) versions 8.2.0.0.0, 12.2.1.4.0 and 26.01.0.0.0 contain a flaw in the Web Server component that lets a low-privileged, network-positioned attacker read critical data and alter or delete a subset of records through HTTP, with impact potentially extending beyond the vulnerable component to other Oracle Analytics products. Oracle rates it CVSS 3.1 8.5 (AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N) in its October-lineage Security Alert. No public exploit code, EPSS score, or CISA KEV entry was present in the supplied intelligence, so active exploitation is unconfirmed.

Affected VersionsENISA

Oracle BI Publisher 12.2.1.4.0

Oracle BI Publisher 8.2.0.0.0

Oracle BI Publisher 26.01.0.0.0

Affected Packages

euvd oracle_bi_publisher 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 8.5 HIGH

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

None

Scope

Changed

Confidentiality

High

Integrity

Low

Availability

None

DescriptionCVE.org

Vulnerability in the Oracle BI Publisher product of Oracle Analytics (component: Web Server). Supported versions that are affected are 8.2.0.0.0, 12.2.1.4.0 and 26.01.0.0.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle BI Publisher. While the vulnerability is in Oracle BI Publisher, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle BI Publisher accessible data as well as unauthorized update, insert or delete access to some of Oracle BI Publisher accessible data. CVSS 3.1 Base Score 8.5 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N).

Threat Intelligence Overview

EPSS Score

0.3%

Top 75% 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 0.3%

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.