How severe is CVE-2018-6966?

CVE-2018-6966 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability high.

Is CVE-2018-6966 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-6966?

CVE-2018-6966 primarily affects Vmware Fusion. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-6966?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-6966 published?

CVE-2018-6966 was published on 2018-07-09 and last updated on 2026-06-17.

CVE-2018-6966

CVE-2018-6966 is a high-severity vulnerability in Vmware Fusion with a CVSS 3.x base score of 8.1. 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-125.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v2: 5.5
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Vmware Fusion
Published: 2018-07-09
Last modified: 2026-06-17

Description

VMware ESXi (6.7 before ESXi670-201806401-BG), Workstation (14.x before 14.1.2), and Fusion (10.x before 10.1.2) contain an out-of-bounds read vulnerability in the shader translator. Successful exploitation of this issue may lead to information disclosure or may allow attackers with normal user privileges to crash their VMs, a different vulnerability than CVE-2018-6965 and CVE-2018-6967.

Frequently asked questions

What is CVE-2018-6966?: VMware ESXi (6.7 before ESXi670-201806401-BG), Workstation (14.x before 14.1.2), and Fusion (10.x before 10.1.2) contain an out-of-bounds read vulnerability in the shader translator. Successful exploitation of this issue may lead to information disclosure or may allow attackers with normal user privileges to crash their VMs, a different vulnerability than CVE-2018-6965 and CVE-2018-6967.
How severe is CVE-2018-6966?: CVE-2018-6966 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability high.
Is CVE-2018-6966 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-6966?: CVE-2018-6966 primarily affects Vmware Fusion. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-6966?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-6966 published?: CVE-2018-6966 was published on 2018-07-09 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:vmware:fusion:*:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation:*:*:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:6.7:-:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:6.7:670-201806001:*:*:*:*:*:*

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