CVE-2017-4941

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Summary

CVECVE-2017-4941
StatePUBLISHED
Assignervmware
Source PriorityCVE Program / NVD first with legacy fallback
Published2017-12-20 15:29:00 UTC
Updated2025-04-20 01:37:25 UTC
DescriptionVMware ESXi (6.0 before ESXi600-201711101-SG, 5.5 ESXi550-201709101-SG), Workstation (12.x before 12.5.8), and Fusion (8.x before 8.5.9) contain a vulnerability that could allow an authenticated VNC session to cause a stack overflow via a specific set of VNC packets. Successful exploitation of this issue could result in remote code execution in a virtual machine via the authenticated VNC session. Note: In order for exploitation to be possible in ESXi, VNC must be manually enabled in a virtual machine's .vmx configuration file. In addition, ESXi must be configured to allow VNC traffic through the built-in firewall.

Risk And Classification

Primary CVSS: v3.1 8.8 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.047760000 probability, percentile 0.895630000 (date 2026-05-18)

Problem Types: CWE-119 | Stack overflow via authenticated VNC session

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary8.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
2.0[email protected]Primary6AV:N/AC:M/Au:S/C:P/I:P/A:P

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
Single
Confidentiality
Partial
Integrity
Partial
Availability
Partial

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Apple Mac Os X - All All All
Operating System Vmware Esxi 5.5 - All All
Operating System Vmware Esxi 5.5 550-20170901001s All All
Operating System Vmware Esxi 5.5 550-20170904001 All All
Operating System Vmware Esxi 6.0 - All All
Operating System Vmware Esxi 6.0 1 All All
Operating System Vmware Esxi 6.0 1a All All
Operating System Vmware Esxi 6.0 1b All All
Operating System Vmware Esxi 6.0 2 All All
Operating System Vmware Esxi 6.0 3 All All
Operating System Vmware Esxi 6.0 3a All All
Operating System Vmware Esxi 6.0 600-201504401 All All
Operating System Vmware Esxi 6.0 600-201505401 All All
Operating System Vmware Esxi 6.0 600-201507101 All All
Operating System Vmware Esxi 6.0 600-201507102 All All
Operating System Vmware Esxi 6.0 600-201507401 All All
Operating System Vmware Esxi 6.0 600-201507402 All All
Operating System Vmware Esxi 6.0 600-201507403 All All
Operating System Vmware Esxi 6.0 600-201507404 All All
Operating System Vmware Esxi 6.0 600-201507405 All All
Operating System Vmware Esxi 6.0 600-201507406 All All
Operating System Vmware Esxi 6.0 600-201507407 All All
Operating System Vmware Esxi 6.0 600-201509101 All All
Operating System Vmware Esxi 6.0 600-201509102 All All
Operating System Vmware Esxi 6.0 600-201509201 All All
Operating System Vmware Esxi 6.0 600-201509202 All All
Operating System Vmware Esxi 6.0 600-201509203 All All
Operating System Vmware Esxi 6.0 600-201509204 All All
Operating System Vmware Esxi 6.0 600-201509205 All All
Operating System Vmware Esxi 6.0 600-201509206 All All
Operating System Vmware Esxi 6.0 600-201509207 All All
Operating System Vmware Esxi 6.0 600-201509208 All All
Operating System Vmware Esxi 6.0 600-201509209 All All
Operating System Vmware Esxi 6.0 600-201509210 All All
Operating System Vmware Esxi 6.0 600-201510401 All All
Operating System Vmware Esxi 6.0 600-201511401 All All
Operating System Vmware Esxi 6.0 600-201601101 All All
Operating System Vmware Esxi 6.0 600-201601102 All All
Operating System Vmware Esxi 6.0 600-201601401 All All
Operating System Vmware Esxi 6.0 600-201601402 All All
Operating System Vmware Esxi 6.0 600-201601403 All All
Operating System Vmware Esxi 6.0 600-201601404 All All
Operating System Vmware Esxi 6.0 600-201601405 All All
Operating System Vmware Esxi 6.0 600-201602401 All All
Operating System Vmware Esxi 6.0 600-201603101 All All
Operating System Vmware Esxi 6.0 600-201603102 All All
Operating System Vmware Esxi 6.0 600-201603201 All All
Operating System Vmware Esxi 6.0 600-201603202 All All
Operating System Vmware Esxi 6.0 600-201603203 All All
Operating System Vmware Esxi 6.0 600-201603204 All All
Operating System Vmware Esxi 6.0 600-201603205 All All
Operating System Vmware Esxi 6.0 600-201603206 All All
Operating System Vmware Esxi 6.0 600-201603207 All All
Operating System Vmware Esxi 6.0 600-201603208 All All
Operating System Vmware Esxi 6.0 600-201605401 All All
Operating System Vmware Esxi 6.0 600-201608101 All All
Operating System Vmware Esxi 6.0 600-201608401 All All
Operating System Vmware Esxi 6.0 600-201608402 All All
Operating System Vmware Esxi 6.0 600-201608403 All All
Operating System Vmware Esxi 6.0 600-201608404 All All
Operating System Vmware Esxi 6.0 600-201608405 All All
Operating System Vmware Esxi 6.0 600-201610410 All All
Operating System Vmware Esxi 6.0 600-201611401 All All
Operating System Vmware Esxi 6.0 600-201611402 All All
Operating System Vmware Esxi 6.0 600-201611403 All All
Operating System Vmware Esxi 6.0 600-201702101 All All
Operating System Vmware Esxi 6.0 600-201702102 All All
Operating System Vmware Esxi 6.0 600-201702201 All All
Operating System Vmware Esxi 6.0 600-201702202 All All
Operating System Vmware Esxi 6.0 600-201702203 All All
Operating System Vmware Esxi 6.0 600-201702204 All All
Operating System Vmware Esxi 6.0 600-201702205 All All
Operating System Vmware Esxi 6.0 600-201702206 All All
Operating System Vmware Esxi 6.0 600-201702207 All All
Operating System Vmware Esxi 6.0 600-201702208 All All
Operating System Vmware Esxi 6.0 600-201702209 All All
Operating System Vmware Esxi 6.0 600-201702210 All All
Operating System Vmware Esxi 6.0 600-201702211 All All
Operating System Vmware Esxi 6.0 600-201702212 All All
Operating System Vmware Esxi 6.0 600-201703401 All All
Operating System Vmware Esxi 6.0 600-201706101 All All
Operating System Vmware Esxi 6.0 600-201706102 All All
Operating System Vmware Esxi 6.0 600-201706103 All All
Operating System Vmware Esxi 6.0 600-201706401 All All
Operating System Vmware Esxi 6.0 600-201706402 All All
Operating System Vmware Esxi 6.0 600-201706403 All All
Operating System Vmware Esxi 6.0 600-201710301 All All
Application Vmware Fusion All All All All
Application Vmware Workstation All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA VMware ESXi affected 6.0 before ESXi600-201711101-SG Not specified
CNA VMware ESXi affected 5.5 ESXi550-201709101-SG Not specified
CNA VMware Workstation affected 12.x before 12.5.8 Not specified
CNA VMware Fusion affected 8.x before 8.5.9 Not specified

References

ReferenceSourceLinkTags
VMSA-2017-0021 af854a3a-2127-422b-91ae-364da2661108 www.vmware.com Issue Tracking, Patch, Vendor Advisory
VMware Workstation and Fusion Buffer Overflows in Processing VNC Packets Let Remote Authenticated Users Execute Arbitrary Code - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com Third Party Advisory, VDB Entry
VMware ESXi Buffer Overflows in Processing VNC Packets Let Remote Authenticated Users Execute Arbitrary Code and an Input Validation Flaw in the Host Client Lets Remote Users Conduct Cross-Site Scripting Attacks - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com Third Party Advisory, VDB Entry
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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