What is the CVSS score of CVE-2014-8371?

CVE-2014-8371 has a CVSS 2.0 base score of 4.3 (Medium). CVSS vector: AV:N/AC:M/Au:N/C:N/I:P/A:N. EPSS exploitation probability: 0.1%.

Vcenter Server Appliance CVE-2014-8371

MEDIUM

Cryptographic Issues (CWE-310)

2014-12-08 cve@mitre.org

Information Disclosure VMware Vcenter Server Appliance

4.3

CVSS 2.0 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-310 OWASP Top 10:2025 A04:2025 - Cryptographic Failures ASVS 5.0 V11 - Cryptography Cryptographic controls
Impact	CVSS score of 4.3 (MEDIUM). Attack characteristics: network attack vector, M complexity. EPSS exploitation probability: 0.13%.
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 0.1% exploitation probability (EPSS)

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AnalysisAI

VMware vCenter Server Appliance (vCSA) 5.5 before Update 2, 5.1 before Update 3, and 5.0 before Update 3c does not properly validate certificates when connecting to a CIM Server on an ESXi host,. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable. 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-310. VMware vCenter Server Appliance (vCSA) 5.5 before Update 2, 5.1 before Update 3, and 5.0 before Update 3c does not properly validate certificates when connecting to a CIM Server on an ESXi host, which allows man-in-the-middle attackers to spoof CIM servers via a crafted certificate. Affected products include: Vmware Vcenter Server Appliance.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 4.3 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Confidentiality

None

Integrity

Availability

None

DescriptionCVE.org

VMware vCenter Server Appliance (vCSA) 5.5 before Update 2, 5.1 before Update 3, and 5.0 before Update 3c does not properly validate certificates when connecting to a CIM Server on an ESXi host, which allows man-in-the-middle attackers to spoof CIM servers via a crafted certificate.

Threat Intelligence Overview

EPSS Score

0.1%

Top 69% 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

Open

Automatable· derived

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +22

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:vmware:vcenter_server_appliance:5.0:update_1:*:*:*:*:*:*

cpe:2.3:a:vmware:vcenter_server_appliance:5.0:update_2:*:*:*:*:*:*

cpe:2.3:a:vmware:vcenter_server_appliance:5.0:update_3:*:*:*:*:*:*

cpe:2.3:a:vmware:vcenter_server_appliance:5.0:update_3a:*:*:*:*:*:*

cpe:2.3:a:vmware:vcenter_server_appliance:5.1:*:*:*:*:*:*:*

cpe:2.3:a:vmware:vcenter_server_appliance:5.1:update_1:*:*:*:*:*:*

cpe:2.3:a:vmware:vcenter_server_appliance:5.1:update_2:*:*:*:*:*:*

cpe:2.3:a:vmware:vcenter_server_appliance:5.5:*:*:*:*:*:*:*

cpe:2.3:a:vmware:vcenter_server_appliance:5.5:update_1:*:*:*:*:*:*

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References

Advisories & patches

ADVISORY http://www.vmware.com/security/advisories/VMSA-2014-0012.html REF http://seclists.org/fulldisclosure/2014/Dec/23 REF http://www.securityfocus.com/archive/1/534161/100/0/threaded

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GitHub PoC

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