Use After Free in VMware Fusion
CVE-2020-3947
VMware Workstation (15.x before 15.5.2) and Fusion (11.x before 11.5.2) contain a use-after vulnerability in vmnetdhcp. Successful exploitation of this issue may lead to code execution on the host from the guest or may allow attackers to create a denial-of-service condition of the vmnetdhcp service running on the host machine.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (48.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 48.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- VMware Fusion — versions 11.x before 11.5.2
- VMware Workstation — versions 15.x before 15.5.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.vmware.com/security/advisories/VMSA-2020-0004.html (Vendor Advisory)
Frequently asked questions
- What is CVE-2020-3947?
- CVE-2020-3947 is a high-severity vulnerability in VMware Fusion, classified under Use After Free. CVSS score: 8.8/10. Published 2020-03-16.
- How severe is CVE-2020-3947?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2020-3947 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.