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CVE-2017-4949

23
FAUCET Score

CVE-2017-4949 is a use-after-free vulnerability in the VMware NAT service affecting VMware Workstation and Fusion when IPv6 mode is enabled. This flaw could allow a malicious guest virtual machine to execute arbitrary code on the host system. With a CVSS score of 7.0 (HIGH), exploitation requires local access and high attack complexity, but could lead to complete compromise of confidentiality, integrity, and availability. There is no public exploit code available, nor is there evidence of active exploitation or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 8.0, < 8.5.10CPE matchmatch criteria
cpe:2.3:a:vmware:fusion:*:*:*:*:*:*:*:*
>= 10.0, < 10.1.1CPE matchmatch criteria
cpe:2.3:a:vmware:fusion:*:*:*:*:*:*:*:*
>= 12.0, < 12.5.9CPE matchmatch criteria
cpe:2.3:a:vmware:workstation:*:*:*:*:*:*:*:*
>= 14.0, < 14.1.1CPE matchmatch criteria
cpe:2.3:a:vmware:workstation:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.0HIGH

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.0
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.37%
Probability of exploitation in next 30 days
EPSS Percentile
29.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0037 is in the 69th percentile among its peer group of 1,523 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.4 InfoSec Media, 0.1 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

vmwarepatch availablevia nvd_reference
View patch

References

vmware.com / security/advisories/VMSA-2018-0005.html
PatchVendor Advisory
securityfocus.com / bid/102489
Third Party AdvisoryVDB Entry
securitytracker.com / id/1040161
Third Party AdvisoryVDB Entry