What is the CVSS score of CVE-2017-1386?

CVE-2017-1386 has a CVSS 3.0 base score of 5.9 (Medium). CVSS vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 0.2%.

Api Connect CVE-2017-1386

MEDIUM

Weak Password Requirements (CWE-521)

2017-07-31 psirt@us.ibm.com

Authentication Bypass IBM Brute Force Api Management Api Connect

5.9

CVSS 3.0 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-521 OWASP Top 10:2025 A07:2025 - Authentication Failures ASVS 5.0 V6 - Authentication Password strength requirements
Impact	CVSS score of 5.9 (MEDIUM). Attack characteristics: network attack vector, high complexity, no privileges required, no user interaction not required. EPSS exploitation probability: 0.21%.
Exploit ScenarioDerived	This vulnerability can be exploited remotely over the network. 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 0.2% exploitation probability (EPSS)

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AnalysisAI

IBM API Connect 5.0.0.0 could allow a user to bypass policy restrictions and create non-compliant passwords which could be intercepted and decrypted using man in the middle techniques. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. 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.

Affects your stack

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Technical ContextAI · show details

This vulnerability is classified under CWE-521. IBM API Connect 5.0.0.0 could allow a user to bypass policy restrictions and create non-compliant passwords which could be intercepted and decrypted using man in the middle techniques. IBM X-Force ID: 127160. Affected products include: Ibm Api Connect, Ibm Api Management.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 5.9 MEDIUM

AV:N/AC:H/PR:N/UI:N/S:U/C:H/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

High

Integrity

None

Availability

None

DescriptionCVE.org

Threat Intelligence Overview

EPSS Score

0.2%

Top 56% 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 0.2%

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

Open

Automatable· derived

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +30

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:api_connect:5.0.0.0:*:*:*:*:*:*:*

cpe:2.3:a:ibm:api_connect:5.0.0.1:*:*:*:*:*:*:*

cpe:2.3:a:ibm:api_connect:5.0.1.0:*:*:*:*:*:*:*

cpe:2.3:a:ibm:api_connect:5.0.2.0:*:*:*:*:*:*:*

cpe:2.3:a:ibm:api_connect:5.0.3.0:*:*:*:*:*:*:*

cpe:2.3:a:ibm:api_connect:5.0.4.0:*:*:*:*:*:*:*

cpe:2.3:a:ibm:api_connect:5.0.5.0:*:*:*:*:*:*:*

cpe:2.3:a:ibm:api_connect:5.0.6.0:*:*:*:*:*:*:*

cpe:2.3:a:ibm:api_connect:5.0.6.1:*:*:*:*:*:*:*

cpe:2.3:a:ibm:api_connect:5.0.6.2:*:*:*:*:*:*:*

cpe:2.3:a:ibm:api_connect:5.0.7.0:*:*:*:*:*:*:*

cpe:2.3:a:ibm:api_management:4.0.0.0:*:*:*:*:*:*:*

cpe:2.3:a:ibm:api_management:4.0.0.1:*:*:*:*:*:*:*

cpe:2.3:a:ibm:api_management:4.0.1.0:*:*:*:*:*:*:*

cpe:2.3:a:ibm:api_management:4.0.2.0:*:*:*:*:*:*:*

cpe:2.3:a:ibm:api_management:4.0.2.1:*:*:*:*:*:*:*

cpe:2.3:a:ibm:api_management:4.0.3.0:*:*:*:*:*:*:*

cpe:2.3:a:ibm:api_management:4.0.4.0:*:*:*:*:*:*:*

cpe:2.3:a:ibm:api_management:4.0.4.1:*:*:*:*:*:*:*

cpe:2.3:a:ibm:api_management:4.0.4.2:*:*:*:*:*:*:*

+ 3 more

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Same weakness CWE-521 – Weak Password Requirements

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References

Advisories & patches

ADVISORY http://www.ibm.com/support/docview.wss?uid=swg22004981 REF http://www.securityfocus.com/bid/100008 REF https://exchange.xforce.ibmcloud.com/vulnerabilities/127160

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