How severe is CVE-2017-4938?

CVE-2017-4938 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2017-4938 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-4938?

CVE-2017-4938 primarily affects Vmware Workstation. In total, 26 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-4938?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2017-4938 published?

CVE-2017-4938 was published on 2017-11-17 and last updated on 2026-06-17.

CVE-2017-4938

CVE-2017-4938 is a medium-severity vulnerability in Vmware Workstation with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-476.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 2.1
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Vmware Workstation
Published: 2017-11-17
Last modified: 2026-06-17

Description

VMware Workstation (12.x before 12.5.8) and Fusion (8.x before 8.5.9) contain a guest RPC NULL pointer dereference vulnerability. Successful exploitation of this issue may allow attackers with normal user privileges to crash their VMs.

Frequently asked questions

What is CVE-2017-4938?: VMware Workstation (12.x before 12.5.8) and Fusion (8.x before 8.5.9) contain a guest RPC NULL pointer dereference vulnerability. Successful exploitation of this issue may allow attackers with normal user privileges to crash their VMs.
How severe is CVE-2017-4938?: CVE-2017-4938 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2017-4938 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-4938?: CVE-2017-4938 primarily affects Vmware Workstation. In total, 26 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-4938?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-4938 published?: CVE-2017-4938 was published on 2017-11-17 and last updated on 2026-06-17.

References

Affected products (26)

cpe:2.3:a:vmware:workstation:12.0.0:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation:12.0.1:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation:12.1:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation:12.1.1:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation:12.5:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation:12.5.1:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation:12.5.2:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation:12.5.3:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation:12.5.4:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation:12.5.5:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation:12.5.6:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation:12.5.7:*:*:*:*:*:*:*
cpe:2.3:a:vmware:fusion:8.0.0:*:*:*:*:*:*:*
cpe:2.3:a:vmware:fusion:8.0.1:*:*:*:*:*:*:*
cpe:2.3:a:vmware:fusion:8.0.2:*:*:*:*:*:*:*
cpe:2.3:a:vmware:fusion:8.1.0:*:*:*:*:*:*:*
cpe:2.3:a:vmware:fusion:8.1.1:*:*:*:*:*:*:*
cpe:2.3:a:vmware:fusion:8.5.0:*:*:*:*:*:*:*
cpe:2.3:a:vmware:fusion:8.5.1:*:*:*:*:*:*:*
cpe:2.3:a:vmware:fusion:8.5.2:*:*:*:*:*:*:*
cpe:2.3:a:vmware:fusion:8.5.3:*:*:*:*:*:*:*
cpe:2.3:a:vmware:fusion:8.5.4:*:*:*:*:*:*:*
cpe:2.3:a:vmware:fusion:8.5.5:*:*:*:*:*:*:*
cpe:2.3:a:vmware:fusion:8.5.6:*:*:*:*:*:*:*
cpe:2.3:a:vmware:fusion:8.5.7:*:*:*:*:*:*:*
cpe:2.3:a:vmware:fusion:8.5.8:*:*:*:*:*:*:*

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