What is the CVSS score of EUVD-2026-79718?

EUVD-2026-79718 has a CVSS 3.1 base score of 7.1 (High). CVSS vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N. EPSS exploitation probability: 0.2%.

Oracle EUVD-2026-79718

| CVE-2026-83417 HIGH

Information Exposure (CWE-200)

2026-09-15 secalert_us@oracle.com

GHSA-4m99-j2rv-85p5

Authentication Bypass Information Disclosure Oracle

7.1

CVSS 3.1 · Vendor: oracle

View

Vulnerability Assessment

Weakness

CWE

CWE-200

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.

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

No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Sep 15, 2026

Oracle Communications Cloud Native Core Security Edge Protection Proxy (SEPP) versions 26.1.200 and 25.2.201 are exposed to an unauthenticated, low-complexity attack launched from the adjacent network segment on which the SEPP host resides. A successful exploit gives the attacker high-impact read access to critical SEPP data plus limited ability to modify or delete that data (CVSS 3.1 base 7.1, AV:A/AC:L/PR:N/UI:N/C:H/I:L/A:N), which in a 5G roaming architecture could mean exposure of inter-PLMN signaling and subscriber-adjacent metadata. No public exploit code and no CISA KEV entry were identified in the available data, so exploitation is currently assessed as opportunistic rather than confirmed in the wild, and the primary exposure is limited to deployments where untrusted parties can reach the SEPP's network segment.

Affected VersionsENISA

Oracle Communications Cloud Native Core Security Edge Protection Proxy 26.1.200

Oracle Communications Cloud Native Core Security Edge Protection Proxy 25.2.201

Affected Packages

euvd oracle_communications_cloud_native_core_security_edge_protection_proxy 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 7.1 HIGH

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

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

CVSS VectorVendor: oracle

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

Low

Availability

None

DescriptionCVE.org

Vulnerability in the Oracle Communications Cloud Native Core Security Edge Protection Proxy product of Oracle Communications (component: SEPP). Supported versions that are affected are 26.1.200 and 25.2.201. Easily exploitable vulnerability allows unauthenticated attacker with access to the physical communication segment attached to the hardware where the Oracle Communications Cloud Native Core Security Edge Protection Proxy executes to compromise Oracle Communications Cloud Native Core Security Edge Protection Proxy. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Communications Cloud Native Core Security Edge Protection Proxy accessible data as well as unauthorized update, insert or delete access to some of Oracle Communications Cloud Native Core Security Edge Protection Proxy accessible data. CVSS 3.1 Base Score 7.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N).

Threat Intelligence Overview

EPSS Score

0.2%

Top 83% 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 0.2%

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· derived

Scheduled

Exploitation· derived

None

System Exposure· derived

Controlled

Automatable· derived

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +36

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Authentication Bypass CRITICAL

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

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.