What is the CVSS score of CVE-2017-4925?

CVE-2017-4925 has a CVSS 3.1 base score of 5.5 (Medium). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.2%.

ESXi CVE-2017-4925

MEDIUM

NULL Pointer Dereference (CWE-476)

2017-09-15 security@vmware.com

Denial Of Service Null Pointer Dereference VMware ESXi Fusion Workstation Workstation Pro

5.5

CVSS 3.1 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-476 OWASP Top 10:2025 A10:2025 - Mishandling of Exceptional Conditions ASVS 5.0 V16 - Security Logging and Error Handling Null pointer safety, defensive checks MITRE ATT&CK 1 technique across 1 tactic: Impact 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 5.5 (MEDIUM). Attack characteristics: local attack vector, low complexity, low privileges required, no user interaction not required. EPSS exploitation probability: 0.19%.
Exploit ScenarioDerived	A local attacker with access to the system could crash the application by dereferencing a null pointer.

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

VMware ESXi 6.5 without patch ESXi650-201707101-SG, ESXi 6.0 without patch ESXi600-201706101-SG, ESXi 5.5 without patch ESXi550-201709101-SG, Workstation (12.x before 12.5.3), Fusion (8.x before. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Check pointers before dereferencing. Use static analysis tools to detect null pointer paths.

Affects your stack

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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 NULL Pointer Dereference (CWE-476), which allows attackers to crash the application by dereferencing a null pointer. VMware ESXi 6.5 without patch ESXi650-201707101-SG, ESXi 6.0 without patch ESXi600-201706101-SG, ESXi 5.5 without patch ESXi550-201709101-SG, Workstation (12.x before 12.5.3), Fusion (8.x before 8.5.4) contain a NULL pointer dereference vulnerability. This issue occurs when handling guest RPC requests. Successful exploitation of this issue may allow attackers with normal user privileges to crash their VMs. Affected products include: Vmware Esxi, Vmware Workstation, Vmware Workstation Pro, Vmware Fusion. Version information: before 12.5.3.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 5.5 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

DescriptionCVE.org

VMware ESXi 6.5 without patch ESXi650-201707101-SG, ESXi 6.0 without patch ESXi600-201706101-SG, ESXi 5.5 without patch ESXi550-201709101-SG, Workstation (12.x before 12.5.3), Fusion (8.x before 8.5.4) contain a NULL pointer dereference vulnerability. This issue occurs when handling guest RPC requests. Successful exploitation of this issue may allow attackers with normal user privileges to crash their VMs.

Threat Intelligence Overview

EPSS Score

0.2%

Top 60% 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

Defer

Exploitation· derived

None

System Exposure· derived

Small

Automatable· derived

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +28

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Null Pointer Dereference MEDIUM

A null pointer dereference occurs when a program attempts to access memory through a pointer that has been set to NULL (address 0x0).

Denial of Service MEDIUM

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

Affected Products (CPE)CVE.org

cpe:2.3:o:vmware:esxi:5.5:-:*:*:*:*:*:*

cpe:2.3:o:vmware:esxi:5.5:1:*:*:*:*:*:*

cpe:2.3:o:vmware:esxi:5.5:2:*:*:*:*:*:*

cpe:2.3:o:vmware:esxi:5.5:3a:*:*:*:*:*:*

cpe:2.3:o:vmware:esxi:5.5:3b:*:*:*:*:*:*

cpe:2.3:o:vmware:esxi:5.5:550-20170901001s:*:*:*:*:*:*

cpe:2.3:o:vmware:esxi:6.0:-:*:*:*:*:*:*

cpe:2.3:o:vmware:esxi:6.0:1:*:*:*:*:*:*

cpe:2.3:o:vmware:esxi:6.0:1a:*:*:*:*:*:*

cpe:2.3:o:vmware:esxi:6.0:1b:*:*:*:*:*:*

cpe:2.3:o:vmware:esxi:6.0:2:*:*:*:*:*:*

cpe:2.3:o:vmware:esxi:6.0:3:*:*:*:*:*:*

cpe:2.3:o:vmware:esxi:6.0:3a:*:*:*:*:*:*

cpe:2.3:o:vmware:esxi:6.0:600-201504401:*:*:*:*:*:*

cpe:2.3:o:vmware:esxi:6.0:600-201505401:*:*:*:*:*:*

cpe:2.3:o:vmware:esxi:6.0:600-201507101:*:*:*:*:*:*

cpe:2.3:o:vmware:esxi:6.0:600-201507102:*:*:*:*:*:*

cpe:2.3:o:vmware:esxi:6.0:600-201507401:*:*:*:*:*:*

cpe:2.3:o:vmware:esxi:6.0:600-201507402:*:*:*:*:*:*

cpe:2.3:o:vmware:esxi:6.0:600-201507403:*:*:*:*:*:*

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References

Advisories & patches

ADVISORY https://www.vmware.com/security/advisories/VMSA-2017-0015.html REF http://www.securityfocus.com/bid/100842 REF http://www.securitytracker.com/id/1039367 REF http://www.securitytracker.com/id/1039368

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