What is the CVSS score of CVE-2020-9488?

CVE-2020-9488 has a CVSS 3.1 base score of 3.7 (Low). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N. EPSS exploitation probability: 0.0%.

Is there a patch available for CVE-2020-9488?

Yes, a patch is available for CVE-2020-9488. Update the affected software to the latest version immediately.

Log4J CVE-2020-9488

LOW

Improper Certificate Validation (CWE-295)

2020-04-27 security@apache.org

Apache Information Disclosure Debian Oracle Debian Linux Peoplesoft Enterprise Peopletools Utilities Framework Weblogic Server Communications Application Session Controller Communications Billing And Revenue Management Communications Services Gatekeeper Financial Services Analytical Applications Infrastructure Financial Services Institutional Performance Analytics Financial Services Market Risk Measurement And Management Financial Services Price Creation And Discovery Insurance Insbridge Rating And Underwriting Policy Automation Policy Automation Connector For Siebel Policy Automation For Mobile Devices Retail Customer Management And Segmentation Foundation Siebel Ui Framework Storagetek Acsls Jd Edwards World Security Storagetek Tape Analytics Sw Tool Retail Advanced Inventory Planning Retail Eftlink Retail Xstore Point Of Service Flexcube Private Banking Financial Services Retail Customer Analytics Insurance Policy Administration J2Ee Primavera Unifier Communications Unified Inventory Management Data Integrator Insurance Rules Palette Communications Offline Mediation Controller Retail Order Broker Cloud Service Health Sciences Information Manager Retail Integration Bus Flexcube Core Banking Log4J Enterprise Manager For Peoplesoft Retail Predictive Application Server Reload4J Communications Eagle Ftp Table Base Retrieval Oracle Goldengate Application Adapters Retail Assortment Planning Retail Bulk Data Integration Retail Insights Cloud Service Suite Siebel Apps Marketing Spatial And Graph Qos

3.7

CVSS 3.1 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-295 OWASP Top 10:2025 A07:2025 - Authentication Failures ASVS 5.0 V12 - Secure Communication Certificate validation
Impact	CVSS score of 3.7 (LOW). Attack characteristics: network attack vector, high complexity, no privileges required, no user interaction not required. EPSS exploitation probability: 0.03%.
Exploit ScenarioDerived	This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the low-severity affected system.

Monitor Track and reassess. Why: LOW severity (CVSS 0.1-3.9).

Patch available 0.0% exploitation probability (EPSS)

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AnalysisAI

Improper validation of certificate with host mismatch in Apache Log4j SMTP appender. Rated low severity (CVSS 3.7), this vulnerability is remotely exploitable, no authentication required.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affected Packages

maven org.apache.logging.log4j:log4j fix: 2.3.2, 2.12.3, 2.13.2

maven org.apache.logging.log4j:log4j-core fix: 2.3.2, 2.12.3, 2.13.2

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 2 packages in maven

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified under CWE-295. Improper validation of certificate with host mismatch in Apache Log4j SMTP appender. This could allow an SMTPS connection to be intercepted by a man-in-the-middle attack which could leak any log messages sent through that appender. Fixed in Apache Log4j 2.12.3 and 2.13.1 Affected products include: Apache Log4J, Oracle Communications Application Session Controller, Oracle Communications Billing And Revenue Management, Oracle Communications Eagle Ftp Table Base Retrieval, Oracle Communications Offline Mediation Controller.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 3.7 LOW

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

DescriptionCVE.org

Improper validation of certificate with host mismatch in Apache Log4j SMTP appender. This could allow an SMTPS connection to be intercepted by a man-in-the-middle attack which could leak any log messages sent through that appender. Fixed in Apache Log4j 2.12.3 and 2.13.1

Threat Intelligence Overview

EPSS Score

0.0%

Top 91% exploitable

Data Quality

4 sources

Confidence: Medium

NVD

CVE.org

EPSS

VulDB

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 LOW

CISA KEV No

Public POC No

EPSS 0.0%

Patch available Yes

Active threat No

Deciding rule

LOW severity (CVSS 0.1-3.9)

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

Defer

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Human Impact· derived

Low

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +18

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

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

Affected Products (CPE)CVE.org

cpe:2.3:a:apache:log4j:*:*:*:*:*:*:*:*

cpe:2.3:a:oracle:communications_application_session_controller:3.9m0p1:*:*:*:*:*:*:*

cpe:2.3:a:oracle:communications_billing_and_revenue_management:7.5.0.23.0:*:*:*:*:*:*:*

cpe:2.3:a:oracle:communications_billing_and_revenue_management:12.0.0.3.0:*:*:*:*:*:*:*

cpe:2.3:a:oracle:communications_eagle_ftp_table_base_retrieval:4.5:*:*:*:*:*:*:*

cpe:2.3:a:oracle:communications_offline_mediation_controller:12.0.0.3.0:*:*:*:*:*:*:*

cpe:2.3:a:oracle:communications_services_gatekeeper:7.0:*:*:*:*:*:*:*

cpe:2.3:a:oracle:communications_unified_inventory_management:7.3.0:*:*:*:*:*:*:*

cpe:2.3:a:oracle:communications_unified_inventory_management:7.4.0:*:*:*:*:*:*:*

cpe:2.3:a:oracle:data_integrator:12.2.1.3.0:*:*:*:*:*:*:*

cpe:2.3:a:oracle:data_integrator:12.2.1.4.0:*:*:*:*:*:*:*

cpe:2.3:a:oracle:enterprise_manager_for_peoplesoft:13.4.1.1:*:*:*:*:*:*:*

cpe:2.3:a:oracle:financial_services_analytical_applications_infrastructure:*:*:*:*:*:*:*:*

cpe:2.3:a:oracle:financial_services_institutional_performance_analytics:8.0.6:*:*:*:*:*:*:*

cpe:2.3:a:oracle:financial_services_institutional_performance_analytics:8.1.0:*:*:*:*:*:*:*

cpe:2.3:a:oracle:financial_services_institutional_performance_analytics:8.7.0:*:*:*:*:*:*:*

cpe:2.3:a:oracle:financial_services_market_risk_measurement_and_management:8.0.6:*:*:*:*:*:*:*

cpe:2.3:a:oracle:financial_services_market_risk_measurement_and_management:8.0.8:*:*:*:*:*:*:*

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