What is the CVSS score of CVE-2013-5426?

CVE-2013-5426 has a CVSS 2.0 base score of 4.9 (Medium). CVSS vector: AV:A/AC:M/Au:S/C:P/I:P/A:P. EPSS exploitation probability: 0.1%.

Infosphere Master Data Management Server For Product Information Management CVE-2013-5426

MEDIUM

Improper Authentication (CWE-287)

2013-12-19 psirt@us.ibm.com

Authentication Bypass IBM Infosphere Master Data Management Collaboration Server Infosphere Master Data Management Server For Product Information Management

4.9

CVSS 2.0 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-287 OWASP Top 10:2025 A07:2025 - Authentication Failures ASVS 5.0 V6 - Authentication Authentication mechanism validation MITRE ATT&CK 2 techniques across 2 tactics: Defense Evasion, Initial Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS score of 4.9 (MEDIUM). Attack characteristics: adjacent network attack vector, M complexity. EPSS exploitation probability: 0.12%.
Exploit ScenarioDerived	An attacker could exploit this vulnerability to bypass authentication mechanisms to gain unauthorized access.

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

No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAI

Session fixation vulnerability in IBM InfoSphere Master Data Management - Collaborative Edition 10.x before 10.1 IF5 and 11.0 before IF1 and InfoSphere Master Data Management Server for Product. Rated medium severity (CVSS 4.9). No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement multi-factor authentication, enforce strong password policies, use proven authentication frameworks.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

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 as Improper Authentication (CWE-287), which allows attackers to bypass authentication mechanisms to gain unauthorized access. Session fixation vulnerability in IBM InfoSphere Master Data Management - Collaborative Edition 10.x before 10.1 IF5 and 11.0 before IF1 and InfoSphere Master Data Management Server for Product Information Management 9.x before 9.1 IF11 allows remote authenticated users to hijack web sessions via unspecified vectors. Affected products include: Ibm Infosphere Master Data Management Collaboration Server, Ibm Infosphere Master Data Management Server For Product Information Management. Version information: before 10.1.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 4.9 MEDIUM

AV:A/AC:M/Au:S/C:P/I:P/A:P

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Adjacent

Attack Complexity

Confidentiality

Integrity

Availability

DescriptionCVE.org

Session fixation vulnerability in IBM InfoSphere Master Data Management - Collaborative Edition 10.x before 10.1 IF5 and 11.0 before IF1 and InfoSphere Master Data Management Server for Product Information Management 9.x before 9.1 IF11 allows remote authenticated users to hijack web sessions via unspecified vectors.

Threat Intelligence Overview

EPSS Score

0.1%

Top 70% exploitable

Data Quality

3 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 0.1%

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.

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: +24

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.

Affected Products (CPE)CVE.org

cpe:2.3:a:ibm:infosphere_master_data_management_collaboration_server:10.0:*:*:*:*:*:*:*

cpe:2.3:a:ibm:infosphere_master_data_management_collaboration_server:10.1:*:*:*:*:*:*:*

cpe:2.3:a:ibm:infosphere_master_data_management_collaboration_server:11.0:*:*:*:*:*:*:*

cpe:2.3:a:ibm:infosphere_master_data_management_server_for_product_information_management:9.0:*:*:*:*:*:*:*

cpe:2.3:a:ibm:infosphere_master_data_management_server_for_product_information_management:9.1:*:*:*:*:*:*:*

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References

Advisories & patches

ADVISORY http://www-01.ibm.com/support/docview.wss?uid=swg21660082 REF https://exchange.xforce.ibmcloud.com/vulnerabilities/87535

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