CVE-2017-4949

mediumpriority · track · 28EPSS 0.004 · 31 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.37% (31st) EPSS

CVSS 6.9 · medium

Is it mine?

8 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

VMware Workstation and Fusion contain a use-after-free vulnerability in VMware NAT service when IPv6 mode is enabled. This issue may allow a guest to execute code on the host. Note: IPv6 mode for VMNAT is not enabled by default.

cvss

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

7.0

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.4–7

v2.06.9mediumAV:L/AC:M/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 3.4 · impact 10

v3.07highCVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1 · impact 5.9

v3.06.4mediumCVSS:3.0/AV:L/AC:H/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-416USprimary

affected products (8)

Products and version ranges known to be affected.

VMware Fusion≤ 8.x before 8.5.10enisa_euvdEU
VMware Fusion≤ 10.x before 10.1.1enisa_euvdEU
VMware Workstation Pro / Player≤ 14.x before 14.1.1enisa_euvdEU
VMware Workstation Pro / Player≤ 12.x before 12.5.9enisa_euvdEU
vmware fusion10.0 → 10.1.1nvdUScpe:2.3:a:vmware:fusion:*:*:*:*:*:*:*:*
vmware fusion8.0 → 8.5.10nvdUScpe:2.3:a:vmware:fusion:*:*:*:*:*:*:*:*
vmware workstation12.0 → 12.5.9nvdUScpe:2.3:a:vmware:workstation:*:*:*:*:*:*:*:*
vmware workstation14.0 → 14.1.1nvdUScpe: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 2018-01-11modified 2026-06-17

related (12,251)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2026-109619US	high8.1OT critical	100.0% (100th)	KEV	2026-10-21
PHP has various global state that temporarily points into request memory. In some scenarios, global state may not be correctly reset, or may be repopulated after being reset. The g…
CVE-2026-109618US	critical9.8OT critical	100.0% (100th)	KEV	2026-10-21
PHP uses longjmp() for out-of-memory (OOM) errors to exit the current context and abort handling of the request. Some contexts may not properly account for this scenario and leave…
CVE-2026-68820US	—OT critical	0.33% (26th)	KEV	2026-08-11
Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
CVE-2026-5281US	—OT critical	13.5% (96th)	KEV	2026-04-01
Use after free in Dawn in Google Chrome prior to 146.0.7680.178 allowed a remote attacker who had compromised the renderer process to execute arbitrary code via a crafted HTML page…
CVE-2026-2441US	high8.8OT critical	55.0% (99th)	KEV	2026-02-13
Use after free in CSS in Google Chrome prior to 145.0.7632.75 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security sever…

+12246 more

references (7)

External citations — patches, advisories, analysis.

https://www.vmware.com/security/advisories/VMSA-2018-0005.html cnnvd
http://www.securityfocus.com/bid/102489 enisa_euvd
http://www.securitytracker.com/id/1040161 enisa_euvd
https://www.vmware.com/security/advisories/VMSA-2018-0005.html enisa_euvd
http://www.securityfocus.com/bid/102489Third Party AdvisoryVDB Entrynvd
http://www.securitytracker.com/id/1040161Third Party AdvisoryVDB Entrynvd
https://www.vmware.com/security/advisories/VMSA-2018-0005.htmlPatchVendor Advisorynvd

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan