How severe is CVE-2017-16777?

CVE-2017-16777 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-16777 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-16777?

CVE-2017-16777 affects Hashicorp Vagrant. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-16777?

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-2017-16777 published?

CVE-2017-16777 was published on 2017-11-16 and last updated on 2026-06-17.

CVE-2017-16777

CVE-2017-16777 is a high-severity vulnerability in Hashicorp Vagrant with a CVSS 3.x base score of 7.8. 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-427.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 7.2
EPSS exploit prediction: 1% (58th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-427
Affected product: Hashicorp Vagrant
Published: 2017-11-16
Last modified: 2026-06-17

Description

If HashiCorp Vagrant VMware Fusion plugin (aka vagrant-vmware-fusion) 5.0.3 is installed but VMware Fusion is not, a local attacker can create a fake application directory and exploit the suid sudo helper in order to escalate to root.

Frequently asked questions

What is CVE-2017-16777?: If HashiCorp Vagrant VMware Fusion plugin (aka vagrant-vmware-fusion) 5.0.3 is installed but VMware Fusion is not, a local attacker can create a fake application directory and exploit the suid sudo helper in order to escalate to root.
How severe is CVE-2017-16777?: CVE-2017-16777 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-16777 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-16777?: CVE-2017-16777 affects Hashicorp Vagrant. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-16777?: 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-2017-16777 published?: CVE-2017-16777 was published on 2017-11-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:hashicorp:vagrant:5.0.3:*:*:*:*:vmware_fusion:*:*

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