How severe is CVE-2018-6957?

CVE-2018-6957 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2018-6957 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-6957?

CVE-2018-6957 primarily affects Vmware Workstation Pro. In total, 41 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-6957?

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

When was CVE-2018-6957 published?

CVE-2018-6957 was published on 2018-03-15 and last updated on 2026-06-17.

CVE-2018-6957

CVE-2018-6957 is a medium-severity vulnerability in Vmware Workstation Pro with a CVSS 3.x base score of 5.3. 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-772.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 3.5
EPSS exploit prediction: 2% (74th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-772
Affected product: Vmware Workstation Pro
Published: 2018-03-15
Last modified: 2026-06-17

Description

VMware Workstation (14.x before 14.1.1, 12.x) and Fusion (10.x before 10.1.1 and 8.x) contain a denial-of-service vulnerability which can be triggered by opening a large number of VNC sessions. Note: In order for exploitation to be possible on Workstation and Fusion, VNC must be manually enabled.

Frequently asked questions

What is CVE-2018-6957?: VMware Workstation (14.x before 14.1.1, 12.x) and Fusion (10.x before 10.1.1 and 8.x) contain a denial-of-service vulnerability which can be triggered by opening a large number of VNC sessions. Note: In order for exploitation to be possible on Workstation and Fusion, VNC must be manually enabled.
How severe is CVE-2018-6957?: CVE-2018-6957 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2018-6957 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-6957?: CVE-2018-6957 primarily affects Vmware Workstation Pro. In total, 41 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-6957?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-6957 published?: CVE-2018-6957 was published on 2018-03-15 and last updated on 2026-06-17.

References

Affected products (41)

cpe:2.3:a:vmware:workstation_pro:*:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation_pro:12.0:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation_pro:12.1:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation_pro:12.01:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation_pro:12.1.1:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation_pro:12.5:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation_pro:12.5.1:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation_pro:12.5.2:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation_pro:12.5.3:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation_pro:12.5.4:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation_pro:12.5.5:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation_pro:12.5.6:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation_pro:12.5.7:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation_player:*:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation_player:12.0:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation_player:12.0.1:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation_player:12.1:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation_player:12.1.1:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation_player:12.5:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation_player:12.5.1:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation_player:12.5.2:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation_player:12.5.3:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation_player:12.5.4:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation_player:12.5.5:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation_player:12.5.6:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation_player:12.5.7:*:*:*:*:*:*:*
cpe:2.3:a:vmware:fusion:8.0:*:*:*:*:*:*:*
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:*:*:*:*:*:*:*
cpe:2.3:a:vmware:fusion:8.1.1:*:*:*:*:*:*:*
cpe:2.3:a:vmware:fusion:8.5:*:*:*:*:*:*:*
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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