What is the CVSS score of CVE-2018-5438?

CVE-2018-5438 has a CVSS 3.0 base score of 6.3 (Medium). CVSS vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N. EPSS exploitation probability: 0.5%.

Intellispace Cardiovascular CVE-2018-5438

MEDIUM

Insufficient Session Expiration (CWE-613)

2018-03-20 ics-cert@hq.dhs.gov

Authentication Bypass Microsoft Intellispace Cardiovascular Philips

6.3

CVSS 3.0 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-613 OWASP Top 10:2025 A07:2025 - Authentication Failures ASVS 5.0 V7 - Session Management Session expiration enforcement
Impact	CVSS score of 6.3 (MEDIUM). Attack characteristics: local attack vector, high complexity, low privileges required, no user interaction not required.
Exploit ScenarioDerived	Successful exploitation could compromise the medium-severity affected system.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

No patch listed yet 0.5% exploitation probability (EPSS)

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AnalysisAI

Philips ISCV application prior to version 2.3.0 has an insufficient session expiration vulnerability where an attacker could reuse the session of a previously logged in user. Rated medium severity (CVSS 6.3). No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

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Technical ContextAI · show details

This vulnerability is classified under CWE-613. Philips ISCV application prior to version 2.3.0 has an insufficient session expiration vulnerability where an attacker could reuse the session of a previously logged in user. This vulnerability exists when using ISCV together with an Electronic Medical Record (EMR) system, where ISCV is in KIOSK mode for multiple users and using Windows authentication. This may allow an attacker to gain unauthorized access to patient health information and potentially modify this information. Affected products include: Philips Intellispace Cardiovascular. Version information: version 2.3.0.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 6.3 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

DescriptionNVD

Philips ISCV application prior to version 2.3.0 has an insufficient session expiration vulnerability where an attacker could reuse the session of a previously logged in user. This vulnerability exists when using ISCV together with an Electronic Medical Record (EMR) system, where ISCV is in KIOSK mode for multiple users and using Windows authentication. This may allow an attacker to gain unauthorized access to patient health information and potentially modify this information.

Threat Intelligence Overview

EPSS Score

0.5%

Top 64% exploitable

Data Quality

2 sources

Confidence: Low

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 MEDIUM

CISA KEV No

Public POC No

EPSS 0.5%

Patch available No

Active threat No

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

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.