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CVE-2017-4934

28
FAUCET Score

CVE-2017-4934 is a high-severity heap buffer-overflow vulnerability affecting VMware Workstation (versions 12.x before 12.5.8) and Fusion (versions 8.x before 8.5.9) within the VMNAT device. This flaw allows a malicious guest operating system to execute arbitrary code on the host system. With a CVSS v3 score of 8.8 (High), it presents a significant risk due to its low attack complexity and potential for complete compromise of confidentiality, integrity, and availability. While no public exploits (Metasploit, Nuclei, ExploitDB) or active exploitation (KEV) have been identified, and community discussion is minimal, the potential for a guest-to-host escape remains a critical concern.

Impacted Technologies

VendorProductVersion(s)CPE
12.0.0CPE matchmatch criteria
cpe:2.3:a:vmware:workstation:12.0.0:*:*:*:*:*:*:*
12.0.1CPE matchmatch criteria
cpe:2.3:a:vmware:workstation:12.0.1:*:*:*:*:*:*:*
12.1CPE matchmatch criteria
cpe:2.3:a:vmware:workstation:12.1:*:*:*:*:*:*:*
12.1.1CPE matchmatch criteria
cpe:2.3:a:vmware:workstation:12.1.1:*:*:*:*:*:*:*
12.5CPE matchmatch criteria
cpe:2.3:a:vmware:workstation:12.5:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.0
Impact Score
6.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.44%
Probability of exploitation in next 30 days
EPSS Percentile
35.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0044 is in the 76th percentile among its peer group of 17,061 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 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 0.3 InfoSec Media, 0.0 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-2017-0018.html
PatchVendor Advisory
securityfocus.com / bid/101903
Third Party AdvisoryVDB Entry
securitytracker.com / id/1039835
Third Party AdvisoryVDB Entry