CVE-2017-4941

mediumpriority · track · 36EPSS 0.032 · 88 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

3.16% (88th) EPSS

CVSS 6 · medium

Is it mine?

8 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-23

VMware 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.

cvss

Technical severity, 0–10. One row per scoring source.

8.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6–8.8

v2.06mediumAV:N/AC:M/Au:S/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 6.8 · impact 6.4

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 5.9

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-119USprimary

affected products (8)

Products and version ranges known to be affected.

VMware ESXi≤ 5.5 ESXi550-201709101-SGenisa_euvdEU
VMware ESXi≤ 6.0 before ESXi600-201711101-SGenisa_euvdEU
VMware Fusion≤ 8.x before 8.5.9enisa_euvdEU
VMware Workstation≤ 12.x before 12.5.8enisa_euvdEU
vmware esxi= 5.5nvdUScpe:2.3:o:vmware:esxi:*:*:*:*:*:*:*:*
vmware esxi= 6.0nvdUScpe:2.3:o:vmware:esxi:*:*:*:*:*:*:*:*
vmware fusion8.0.0 → 8.5.9nvdUScpe:2.3:a:vmware:fusion:*:*:*:*:*:*:*:*
vmware workstation12.0.0 → 12.5.8nvdUScpe:2.3:a:vmware:workstation:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2017-12-20modified 2026-06-17

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+20995 more

references (9)

External citations — patches, advisories, analysis.

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