CVE-2017-4939

VMware Workstation (12.x before 12.5.8) installer contains a DLL hijacking issue that exists due to some DLL files loaded by the application improperly. This issue may allow an attacker to load a DLL file of the attacker's choosing that could execute arbitrary code.

Published: 2017-11-17 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-4939 is rated Moderate Risk (56/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.34%). EPSS rose +1.17% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2017-4939

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.17% 1.34% +1.17%
2 2025-03-30 0.25% 0.17% -0.08%
3 2025-03-29 — 0.25% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-4939

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.0 HIGH
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 [email protected]
6.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 6.4 [email protected]

Weakness enumeration for CVE-2017-4939

Affected software / configurations for CVE-2017-4939

Vendor Product Version Raw CPE
vmware workstation 12.0.0 cpe:2.3:a:vmware:workstation:12.0.0:*:*:*:*:*:*:*
vmware workstation 12.0.1 cpe:2.3:a:vmware:workstation:12.0.1:*:*:*:*:*:*:*
vmware workstation 12.1.1 cpe:2.3:a:vmware:workstation:12.1.1:*:*:*:*:*:*:*
vmware workstation 12.5.0 cpe:2.3:a:vmware:workstation:12.5.0:*:*:*:*:*:*:*
vmware workstation 12.5.1 cpe:2.3:a:vmware:workstation:12.5.1:*:*:*:*:*:*:*
vmware workstation 12.5.2 cpe:2.3:a:vmware:workstation:12.5.2:*:*:*:*:*:*:*
vmware workstation 12.5.3 cpe:2.3:a:vmware:workstation:12.5.3:*:*:*:*:*:*:*
vmware workstation 12.5.4 cpe:2.3:a:vmware:workstation:12.5.4:*:*:*:*:*:*:*
vmware workstation 12.5.5 cpe:2.3:a:vmware:workstation:12.5.5:*:*:*:*:*:*:*
vmware workstation 12.5.6 cpe:2.3:a:vmware:workstation:12.5.6:*:*:*:*:*:*:*
vmware workstation 12.5.7 cpe:2.3:a:vmware:workstation:12.5.7:*:*:*:*:*:*:*

References for CVE-2017-4939

cvelogic Threat Intelligence