CVE-2017-4940

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Summary

CVECVE-2017-4940
StatePUBLISHED
Assignervmware
Source PriorityCVE Program / NVD first with legacy fallback
Published2017-12-20 15:29:00 UTC
Updated2025-04-20 01:37:25 UTC
DescriptionThe ESXi Host Client in VMware ESXi (6.5 before ESXi650-201712103-SG, 5.5 before ESXi600-201711103-SG and 5.5 before ESXi550-201709102-SG) contains a vulnerability that may allow for stored cross-site scripting (XSS). An attacker can exploit this vulnerability by injecting Javascript, which might get executed when other users access the Host Client.

Risk And Classification

Primary CVSS: v3.1 6.1 MEDIUM from [email protected]

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

EPSS: 0.001480000 probability, percentile 0.348330000 (date 2026-05-18)

Problem Types: CWE-79 | Stored cross-site scripting vulnerability

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary6.1MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
2.0[email protected]Primary4.3AV:N/AC:M/Au:N/C:N/I:P/A:N

CVSS v3.1 Breakdown

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

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

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Vmware Esxi 5.5 - All All
Operating System Vmware Esxi 5.5 1 All All
Operating System Vmware Esxi 5.5 2 All All
Operating System Vmware Esxi 5.5 3a All All
Operating System Vmware Esxi 5.5 3b All All
Operating System Vmware Esxi 5.5 550-20170901001s 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
Operating System Vmware Esxi 6.5 - All All
Operating System Vmware Esxi 6.5 650-201701001 All All
Operating System Vmware Esxi 6.5 650-201703001 All All
Operating System Vmware Esxi 6.5 650-201703002 All All
Operating System Vmware Esxi 6.5 650-201704001 All All
Operating System Vmware Esxi 6.5 650-201707101 All All
Operating System Vmware Esxi 6.5 650-201707102 All All
Operating System Vmware Esxi 6.5 650-201707103 All All
Operating System Vmware Esxi 6.5 650-201707201 All All
Operating System Vmware Esxi 6.5 650-201707202 All All
Operating System Vmware Esxi 6.5 650-201707203 All All
Operating System Vmware Esxi 6.5 650-201707204 All All
Operating System Vmware Esxi 6.5 650-201707205 All All
Operating System Vmware Esxi 6.5 650-201707206 All All
Operating System Vmware Esxi 6.5 650-201707207 All All
Operating System Vmware Esxi 6.5 650-201707208 All All
Operating System Vmware Esxi 6.5 650-201707209 All All
Operating System Vmware Esxi 6.5 650-201707210 All All
Operating System Vmware Esxi 6.5 650-201707211 All All
Operating System Vmware Esxi 6.5 650-201707212 All All
Operating System Vmware Esxi 6.5 650-201707213 All All
Operating System Vmware Esxi 6.5 650-201707214 All All
Operating System Vmware Esxi 6.5 650-201707215 All All
Operating System Vmware Esxi 6.5 650-201707216 All All
Operating System Vmware Esxi 6.5 650-201707217 All All
Operating System Vmware Esxi 6.5 650-201707218 All All
Operating System Vmware Esxi 6.5 650-201707219 All All
Operating System Vmware Esxi 6.5 650-201707220 All All
Operating System Vmware Esxi 6.5 650-201707221 All All
Operating System Vmware Esxi 6.5 650-201710001 All All
Operating System Vmware Esxi 6.5 650-201712001 All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA VMware ESXi affected 6.5 before ESXi650-201712103-SG Not specified
CNA VMware ESXi affected 6.0 before ESXi600-201711103-SG Not specified
CNA VMware ESXi affected 5.5 before ESXi550-201709102-SG) Not specified

References

ReferenceSourceLinkTags
VMSA-2017-0021 af854a3a-2127-422b-91ae-364da2661108 www.vmware.com Vendor Advisory
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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